diff --git a/src/lib/components/chrome/SplashScreen.svelte b/src/lib/components/chrome/SplashScreen.svelte
index 9a4c06c..05e5415 100644
--- a/src/lib/components/chrome/SplashScreen.svelte
+++ b/src/lib/components/chrome/SplashScreen.svelte
@@ -1,9 +1,46 @@
+<script module lang="ts">
+  function getLiveSet(): Set<HTMLCanvasElement> {
+    const g = window as any
+    if (!g.__splashCanvasSet) g.__splashCanvasSet = new Set<HTMLCanvasElement>()
+    return g.__splashCanvasSet as Set<HTMLCanvasElement>
+  }
+
+  function pruneSet(set: Set<HTMLCanvasElement>) {
+    for (const el of set) if (!el.isConnected) set.delete(el)
+  }
+
+  export function splashDevRegister(el: HTMLCanvasElement) {
+    const set = getLiveSet()
+    pruneSet(set)
+    set.add(el)
+  }
+
+  export function splashDevUnregister(el: HTMLCanvasElement) {
+    const set = getLiveSet()
+    set.delete(el)
+    pruneSet(set)
+  }
+
+  export function splashDevLiveCount(): number {
+    const set = getLiveSet()
+    pruneSet(set)
+    return set.size
+  }
+
+  export function splashDevNextMount(): number {
+    const g = window as any
+    g.__splashTotalMounts = (g.__splashTotalMounts ?? 0) + 1
+    return g.__splashTotalMounts as number
+  }
+</script>
+
 <script lang="ts">
   import { onMount } from 'svelte'
   import logoUrl     from '$lib/assets/moku-icon-splash.svg'
   import { platformService } from '$lib/platform-service'
 
   const isTauri = platformService.platform === 'tauri'
+  const isDev   = import.meta.env.DEV
 
   interface Props {
     mode?:          'loading' | 'idle' | 'locked'
@@ -12,6 +49,7 @@
     notConfigured?: boolean
     showCards?:     boolean
     showFps?:       boolean
+    showDevOverlay?: boolean
     pinLen?:        number
     pinCorrect?:    string
     onReady?:       () => void
@@ -23,7 +61,7 @@
 
   let {
     mode = 'loading', ringFull = false, failed = false,
-    notConfigured = false, showCards = true, showFps = false,
+    notConfigured = false, showCards = true, showFps = false, showDevOverlay = false,
     pinLen = 4, pinCorrect = '',
     onReady, onUnlock, onRetry, onBypass, onDismiss,
   }: Props = $props()
@@ -80,7 +118,7 @@
 
   $effect(() => {
     if (mode === 'loading' && !failed && !notConfigured && !ringFull) {
-      if (!isTauri) return  // no ring animation on web; probe outcome drives exit
+      if (!isTauri) return
       animStart = null
       animPhase = 1
       animFrame = requestAnimationFrame(animateRing)
@@ -280,22 +318,87 @@
     }
   }
 
+  interface DevMetrics {
+    totalMounts:  number
+    resizeCount:  number
+    stampCount:   number
+    mountedAt:    number
+    lastResizeAt: number | null
+  }
+
+  let devMetrics   = $state<DevMetrics | null>(null)
+  let uptimeSecs   = $state(0)
+  let devLiveCount = $state(0)
+
+  $effect(() => {
+    if (!isDev || mode !== 'idle' || !devMetrics) return
+    const start = Date.now()
+    const iv = setInterval(() => { uptimeSecs = Math.floor((Date.now() - start) / 1000) }, 1000)
+    return () => clearInterval(iv)
+  })
+
+  function fmtUptime(s: number): string {
+    if (s < 60) return `${s}s`
+    return `${Math.floor(s / 60)}m ${s % 60}s`
+  }
+
+  function fmtAgo(ts: number | null): string {
+    if (ts === null) return '—'
+    const s = Math.floor((Date.now() - ts) / 1000)
+    if (s < 60) return `${s}s ago`
+    return `${Math.floor(s / 60)}m ago`
+  }
+
   function mountCanvas(el: HTMLCanvasElement) {
     const ctx = el.getContext('2d')!
     let live: RenderState | null = null
     let lastLogW = 0, lastLogH = 0, lastScale = 0, buildGen = 0
 
+    if (isDev && mode === 'idle') {
+      splashDevRegister(el)
+      devLiveCount = splashDevLiveCount()
+      uptimeSecs   = 0
+      devMetrics   = {
+        totalMounts:  splashDevNextMount(),
+        resizeCount:  0,
+        stampCount:   0,
+        mountedAt:    Date.now(),
+        lastResizeAt: null,
+      }
+    }
+
+    function cleanup() {
+      if (live) {
+        live.stamps.forEach(c => { c.width = 0; c.height = 0 })
+        live.vignette.width = 0
+        live.vignette.height = 0
+        live = null
+      }
+      ctx.clearRect(0, 0, el.width, el.height)
+    }
+
     function applySize(logW: number, logH: number, scale: number) {
       const gen = ++buildGen
       if (logW <= 0 || logH <= 0) return
       if (logW === lastLogW && logH === lastLogH && scale === lastScale) return
       lastLogW = logW; lastLogH = logH; lastScale = scale
+      if (live) cleanup()
       const built  = buildCards(logW, logH)
       const stamps = built.cards.map(c => buildStamp(c, scale))
       const vig    = buildVignette(logW, logH, scale)
       el.width  = Math.round(logW * scale)
       el.height = Math.round(logH * scale)
-      if (gen === buildGen) live = { cards: built.cards, trigs: built.trigs, stamps, vignette: vig, CW: el.width, CH: el.height, scale }
+      if (gen === buildGen) {
+        live = { cards: built.cards, trigs: built.trigs, stamps, vignette: vig, CW: el.width, CH: el.height, scale }
+        if (isDev && mode === 'idle' && devMetrics) {
+          devMetrics = {
+            ...devMetrics,
+            resizeCount:  devMetrics.resizeCount + 1,
+            stampCount:   stamps.length,
+            lastResizeAt: Date.now(),
+          }
+        }
+      }
     }
 
     let extraCleanup: (() => void) | undefined
@@ -343,8 +446,13 @@
     raf = requestAnimationFrame(frame)
     return () => {
       cancelAnimationFrame(raf)
+      cleanup()
       extraCleanup?.()
       document.removeEventListener('visibilitychange', onVis)
+      if (isDev && mode === 'idle') {
+        splashDevUnregister(el)
+        devLiveCount = splashDevLiveCount()
+      }
     }
   }
 </script>
@@ -357,6 +465,20 @@
     {/if}
   {/if}
 
+  {#if isDev && mode === 'idle' && devMetrics && showDevOverlay}
+    <div class="dev-overlay">
+      <span class="dev-title">canvas · idle splash</span>
+      <div class="dev-grid">
+        <span class="dev-k">live</span>          <span class="dev-v" class:dev-warn={devLiveCount > 1}>{devLiveCount}</span>
+        <span class="dev-k">total mounts</span>  <span class="dev-v">{devMetrics.totalMounts}</span>
+        <span class="dev-k">stamps</span>        <span class="dev-v">{devMetrics.stampCount}</span>
+        <span class="dev-k">resizes</span>       <span class="dev-v">{devMetrics.resizeCount}</span>
+        <span class="dev-k">uptime</span>        <span class="dev-v">{fmtUptime(uptimeSecs)}</span>
+        <span class="dev-k">last resize</span>   <span class="dev-v">{fmtAgo(devMetrics.lastResizeAt)}</span>
+      </div>
+    </div>
+  {/if}
+
   {#if mode === 'idle'}
     <div style="z-index:1;display:flex;flex-direction:column;align-items:center">
       <div style="position:relative;width:{logoIdleSize}px;height:{logoIdleSize}px;margin-bottom:32px">
@@ -449,4 +571,11 @@
   .err-btn:hover { border-color:var(--border-strong); color:var(--text-secondary); }
   .err-btn--primary       { border-color:var(--accent-dim); color:var(--accent-fg); background:var(--accent-muted); }
   .err-btn--primary:hover { border-color:var(--accent); color:var(--accent-bright); }
+
+  .dev-overlay { position:absolute; top:12px; left:12px; z-index:10; background:rgba(0,0,0,0.72); border:1px solid rgba(255,255,255,0.10); border-radius:6px; padding:8px 10px; pointer-events:none; backdrop-filter:blur(6px); }
+  .dev-title   { display:block; font-family:var(--font-ui); font-size:9px; letter-spacing:0.14em; text-transform:uppercase; color:var(--accent); margin-bottom:6px; }
+  .dev-grid    { display:grid; grid-template-columns:auto auto; column-gap:12px; row-gap:2px; }
+  .dev-k       { font-family:var(--font-ui); font-size:10px; color:var(--text-faint); white-space:nowrap; }
+  .dev-v       { font-family:var(--font-ui); font-size:10px; color:var(--text-secondary); text-align:right; white-space:nowrap; }
+  .dev-warn    { color:#f87171; }
 </style>
\ No newline at end of file
diff --git a/src/lib/components/reader/Reader.svelte b/src/lib/components/reader/Reader.svelte
index 326654f..c697ea8 100644
--- a/src/lib/components/reader/Reader.svelte
+++ b/src/lib/components/reader/Reader.svelte
@@ -2,7 +2,7 @@
   import { onMount, untrack, tick }        from "svelte";
   import { readerState, PAGE_STYLES }      from "$lib/state/reader.svelte";
   import { settingsState, updateSettings } from "$lib/state/settings.svelte";
-  import { app }                           from "$lib/state/app.svelte";
+  import { app, appState }                 from "$lib/state/app.svelte";
   import { DEFAULT_KEYBINDS }              from "$lib/core/keybinds/defaultBinds";
   import { fetchPages, resolveUrl, preloadImage, measureAspect, buildPageGroups } from "$lib/components/reader/lib/pageLoader";
   import { setupScrollTracking, appendNextChapter }          from "$lib/components/reader/lib/scrollHandler";
@@ -13,6 +13,8 @@
   import { loadChapter, scheduleResumeDismiss }              from "$lib/components/reader/lib/chapterLoader";
   import { historyState }                                    from "$lib/state/history.svelte";
   import { getAdapter }                                      from "$lib/request-manager";
+  import { setReading, clearReading }                        from "$lib/core/discord";
+  import { revokeBlobUrl }                                   from "$lib/core/cache/imageCache";
   import type { ReaderSettings }                             from "$lib/state/reader.svelte";
   import ReaderControls                                      from "$lib/components/reader/ReaderControls.svelte";
   import PageView                                            from "$lib/components/reader/PageView.svelte";
@@ -216,10 +218,20 @@
     ? () => goForward(style, adjacent, lastPage, maybeMarkCurrentRead, startAtLast)
     : () => goBack(style, adjacent, startAtLast));
 
+  // clear Discord presence and free page blob textures before closing
+  function handleCloseReader() {
+    clearReading().catch(() => {});
+    for (const url of readerState.pageUrls) revokeBlobUrl(url);
+    for (const strip of readerState.stripChapters) {
+      for (const url of strip.urls) revokeBlobUrl(url);
+    }
+    readerState.closeReader();
+  }
+
   const onKey = createReaderKeyHandler({
     goNext:           () => goNext(),
     goPrev:           () => goPrev(),
-    closeReader:      () => readerState.closeReader(),
+    closeReader:      () => handleCloseReader(),
     goToPage:         (p) => jumpToPage(p, style, lastPage, containerEl),
     lastPage:         () => lastPage,
     adjustZoom:       (d) => { captureZoomAnchor(containerEl, style, zoomAnchor); applySettings({ readerZoom: clampZoom(zoom + d) }); restoreZoomAnchor(containerEl, zoomAnchor); },
@@ -313,6 +325,16 @@
     }
   });
 
+  // Separate from chapter load: also re-fires when idle splash dismisses so presence is restored.
+  $effect(() => {
+    const ch    = readerState.activeChapter;
+    const manga = readerState.activeManga;
+    const idle  = appState.idleSplash;
+    if (ch && manga && !idle) {
+      untrack(() => setReading(manga, ch).catch(() => {}));
+    }
+  });
+
   $effect(() => {
     const page   = readerState.pageNumber;
     const chId   = style === "longstrip"
diff --git a/src/lib/components/reader/lib/chapterLoader.ts b/src/lib/components/reader/lib/chapterLoader.ts
index 16c6f62..5634eff 100644
--- a/src/lib/components/reader/lib/chapterLoader.ts
+++ b/src/lib/components/reader/lib/chapterLoader.ts
@@ -1,13 +1,15 @@
-import { readerState }          from "$lib/state/reader.svelte";
-import { fetchPages }           from "./pageLoader";
-import { cancelQueuedFetches }  from "$lib/core/cache/imageCache";
-import { clearResolvedUrlCache } from "$lib/core/cache/pageCache";
+import { readerState }                          from "$lib/state/reader.svelte";
+import { fetchPages }                           from "./pageLoader";
+import { cancelQueuedFetches, revokeBlobUrl }   from "$lib/core/cache/imageCache";
+import { clearResolvedUrlCache, clearPageCache } from "$lib/core/cache/pageCache";
 
 export function scheduleResumeDismiss() {
   setTimeout(() => { readerState.resumeFading = true; }, 1500);
   setTimeout(() => { readerState.resumeVisible = false; readerState.resumeFading = false; }, 2500);
 }
 
+let prefetchedChapterId: number | null = null;
+
 export async function loadChapter(
   id: number,
   useBlob: boolean,
@@ -21,7 +23,19 @@ export async function loadChapter(
   abortCtrl.current = ctrl;
 
   cancelQueuedFetches();
-  if (useBlob) clearResolvedUrlCache();
+  if (useBlob) {
+    clearResolvedUrlCache();
+    for (const url of readerState.pageUrls) revokeBlobUrl(url);
+    for (const strip of readerState.stripChapters) {
+      for (const url of strip.urls) revokeBlobUrl(url);
+    }
+    if (prefetchedChapterId !== null && prefetchedChapterId !== id) {
+      const prefetchedUrls = await fetchPages(prefetchedChapterId, false).catch(() => [] as string[]);
+      for (const url of prefetchedUrls) revokeBlobUrl(url);
+      clearPageCache(prefetchedChapterId);
+    }
+    prefetchedChapterId = null;
+  }
 
   startAtLastPage.current = false;
   markedRead.clear();
@@ -44,10 +58,13 @@ export async function loadChapter(
     else if (resumeTo > 1)        readerState.pageNumber = Math.min(resumeTo, urls.length || resumeTo);
     readerState.pageReady = true;
     readerState.loading   = false;
-    if (adjacent.next) fetchPages(adjacent.next.id, useBlob, ctrl.signal).catch(() => {});
+    if (adjacent.next) {
+      prefetchedChapterId = adjacent.next.id;
+      fetchPages(adjacent.next.id, useBlob, ctrl.signal).catch(() => {});
+    }
   } catch (e: unknown) {
     if (ctrl.signal.aborted) return;
     readerState.error   = e instanceof Error ? e.message : String(e);
     readerState.loading = false;
   }
-}
+}
\ No newline at end of file
diff --git a/src/lib/components/series/SeriesHeader.svelte b/src/lib/components/series/SeriesHeader.svelte
index 1c9f474..ee1b8ce 100644
--- a/src/lib/components/series/SeriesHeader.svelte
+++ b/src/lib/components/series/SeriesHeader.svelte
@@ -93,7 +93,7 @@
 
   <div class="cover-wrap">
     <button class="cover-btn" onclick={() => manga && setPreviewManga(manga)} title="Quick preview" disabled={!manga}>
-      <Thumbnail src={resolvedCover(seriesState.activeManga?.id ?? manga?.id ?? 0, seriesState.activeManga?.thumbnailUrl ?? manga?.thumbnailUrl ?? "")} alt={seriesState.activeManga?.title ?? manga?.title ?? ""} class="cover" id={seriesState.activeManga?.id ?? manga?.id} />
+      <Thumbnail src={resolvedCover(manga?.id ?? seriesState.activeManga?.id ?? 0, manga?.thumbnailUrl ?? seriesState.activeManga?.thumbnailUrl ?? "")} alt={manga?.title ?? seriesState.activeManga?.title ?? ""} class="cover" id={manga?.id ?? seriesState.activeManga?.id} />
     </button>
   </div>
 
diff --git a/src/lib/components/settings/Settings.css b/src/lib/components/settings/Settings.css
index b1ac984..1f6e904 100644
--- a/src/lib/components/settings/Settings.css
+++ b/src/lib/components/settings/Settings.css
@@ -10,9 +10,7 @@
 /* ── Backdrop & Modal Shell ───────────────────────────────────────── */
 .s-backdrop {
   position: fixed; inset: 0;
-  background: rgba(0,0,0,0.6);
-  backdrop-filter: blur(8px);
-  -webkit-backdrop-filter: blur(8px);
+
   z-index: var(--z-settings);
   display: flex; align-items: center; justify-content: center;
   animation: s-fade-in 0.14s ease both;
@@ -29,10 +27,7 @@
   overflow: visible;
   position: relative;
   animation: s-scale-in 0.2s cubic-bezier(0.16,1,0.3,1) both;
-  box-shadow:
-    0 0 0 1px rgba(255,255,255,0.04) inset,
-    0 24px 80px rgba(0,0,0,0.7),
-    0 8px 24px rgba(0,0,0,0.4);
+  box-shadow: 0 0 0 1px var(--border-dim), 0 24px 64px rgba(0,0,0,0.6);
 }
 
 
@@ -46,7 +41,7 @@
   display: flex;
   flex-direction: column;
   gap: 1px;
-  overflow-y: auto;
+  overflow-y: hidden;
   border-radius: var(--radius-2xl) 0 0 var(--radius-2xl);
 }
 
diff --git a/src/lib/components/settings/Settings.svelte b/src/lib/components/settings/Settings.svelte
index 8e618a7..edc1851 100644
--- a/src/lib/components/settings/Settings.svelte
+++ b/src/lib/components/settings/Settings.svelte
@@ -19,6 +19,7 @@
   import ContentSettings     from './sections/ContentSettings.svelte'
   import AboutSettings       from './sections/AboutSettings.svelte'
   import DevtoolsSettings    from './sections/DevToolsSettings.svelte'
+  import ModalBlur           from '$lib/components/shared/ui/ModalBlur.svelte'
 
   interface Props { onclose?: () => void; onOpenThemeEditor?: (id?: string | null) => void }
   let { onclose, onOpenThemeEditor }: Props = $props()
@@ -111,6 +112,7 @@
   })
 </script>
 
+<ModalBlur />
 <div class="s-backdrop" role="presentation" tabindex="-1"
   onclick={(e) => { if (e.target === e.currentTarget) close() }}
   onkeydown={(e) => { if (e.key === 'Escape') { e.stopPropagation(); close() } }}>
diff --git a/src/lib/components/settings/sections/DevToolsSettings.svelte b/src/lib/components/settings/sections/DevToolsSettings.svelte
index 260b50a..b13b4c8 100644
--- a/src/lib/components/settings/sections/DevToolsSettings.svelte
+++ b/src/lib/components/settings/sections/DevToolsSettings.svelte
@@ -102,9 +102,10 @@
   }
 
   function triggerSplash() {
+    if (appState.devSplash) return
     splashTriggered = true
     setTimeout(() => splashTriggered = false, 200)
-    appState.idleSplash = true
+    appState.devSplash = true
   }
 
   async function testWindowsHello() {
diff --git a/src/lib/components/shared/manga/MangaPreview.svelte b/src/lib/components/shared/manga/MangaPreview.svelte
index 7687228..6ca25f2 100644
--- a/src/lib/components/shared/manga/MangaPreview.svelte
+++ b/src/lib/components/shared/manga/MangaPreview.svelte
@@ -20,6 +20,7 @@
   } from "$lib/state/series.svelte";
   import { app } from "$lib/state/app.svelte";
   import type { Manga, Chapter, Category } from "$lib/types";
+  import ModalBlur        from '$lib/components/shared/ui/ModalBlur.svelte'
 
 
   let manga: Manga | null         = $state(null);
@@ -353,6 +354,7 @@
 </script>
 
 {#if seriesState.previewManga}
+<ModalBlur blur={4} dim={0.72} />
 <div
   class="backdrop"
   role="button"
@@ -679,10 +681,8 @@
 <style>
   .backdrop {
     position: fixed; inset: 0;
-    background: rgba(0,0,0,0.72);
     z-index: var(--z-settings);
     display: flex; align-items: center; justify-content: center;
-    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
     animation: fadeIn 0.12s ease both;
   }
   .modal {
diff --git a/src/lib/components/shared/ui/ModalBlur.svelte b/src/lib/components/shared/ui/ModalBlur.svelte
new file mode 100644
index 0000000..eca8d46
--- /dev/null
+++ b/src/lib/components/shared/ui/ModalBlur.svelte
@@ -0,0 +1,40 @@
+<script lang="ts">
+  let {
+    blur    = 8,
+    dim     = 0.6,
+    zIndex  = 'var(--z-settings)',
+    animate = true,
+  }: {
+    blur?:    number
+    dim?:     number
+    zIndex?:  string | number
+    animate?: boolean
+  } = $props()
+</script>
+
+<div
+  class="modal-blur"
+  class:animate
+  style="--blur:{blur}px; --dim:{dim}; --z:{zIndex}"
+></div>
+
+<style>
+  .modal-blur {
+    position: fixed;
+    inset: 0;
+    backdrop-filter: blur(var(--blur));
+    -webkit-backdrop-filter: blur(var(--blur));
+    background: rgba(0, 0, 0, var(--dim));
+    pointer-events: none;
+    z-index: var(--z);
+  }
+
+  .modal-blur.animate {
+    animation: blur-in 0.14s ease both;
+  }
+
+  @keyframes blur-in {
+    from { opacity: 0 }
+    to   { opacity: 1 }
+  }
+</style>
\ No newline at end of file
diff --git a/src/lib/components/tracking/TrackingPanel.svelte b/src/lib/components/tracking/TrackingPanel.svelte
index 41365c4..8662a31 100644
--- a/src/lib/components/tracking/TrackingPanel.svelte
+++ b/src/lib/components/tracking/TrackingPanel.svelte
@@ -10,6 +10,7 @@
   import { markManyRead }     from "$lib/request-manager/chapters";
   import type { Tracker, TrackRecord, TrackSearch } from "$lib/types";
   import type { Chapter }     from "$lib/types";
+  import ModalBlur        from '$lib/components/shared/ui/ModalBlur.svelte'
 
   let { mangaId, mangaTitle, onClose }: {
     mangaId:    number;
@@ -250,6 +251,7 @@
   }
 }} />
 
+<ModalBlur blur={4} dim={0.68} />
 <div class="backdrop" role="presentation" onclick={(e) => { if (e.target === e.currentTarget) onClose(); }}>
   <div class="modal" role="dialog" aria-label="Tracking">
 
@@ -497,6 +499,7 @@
 {#if confirmUnbindId !== null}
   {@const rec = records.find(r => r.id === confirmUnbindId)}
   {@const trk = rec ? trackerFor(rec.trackerId) : null}
+  <ModalBlur blur={2} dim={0.45} zIndex="calc(var(--z-settings) + 1)" />
   <div class="confirm-backdrop" role="button" tabindex="-1" aria-label="Cancel"
     onclick={() => confirmUnbindId = null}
     onkeydown={(e) => { if (e.key === "Escape") confirmUnbindId = null; }}>
@@ -515,10 +518,9 @@
 
 <style>
   .backdrop {
-    position: fixed; inset: 0; background: rgba(0,0,0,0.68);
+    position: fixed; inset: 0;
     z-index: var(--z-settings);
     display: flex; align-items: center; justify-content: center;
-    backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
     animation: fadeIn 0.12s ease both;
   }
   .modal {
@@ -646,7 +648,7 @@
   .result-row:hover:not(:disabled) .result-action { color: var(--accent-fg); border-color: var(--accent-dim); background: var(--accent-muted); }
   .result-action-on { color: var(--accent-fg) !important; border-color: var(--accent-dim) !important; background: var(--accent-muted) !important; }
 
-  .confirm-backdrop { position: fixed; inset: 0; z-index: calc(var(--z-settings) + 1); background: rgba(0,0,0,0.45); backdrop-filter: blur(2px); display: flex; align-items: center; justify-content: center; animation: fadeIn 0.1s ease both; }
+  .confirm-backdrop { position: fixed; inset: 0; z-index: calc(var(--z-settings) + 1); display: flex; align-items: center; justify-content: center; animation: fadeIn 0.1s ease both; }
   .confirm-modal { background: var(--bg-surface); border: 1px solid var(--border-dim); border-radius: var(--radius-xl); padding: var(--sp-5); width: 260px; display: flex; flex-direction: column; gap: var(--sp-3); box-shadow: 0 16px 48px rgba(0,0,0,0.5); animation: scaleIn 0.15s ease both; }
   .confirm-title { font-size: var(--text-sm); font-weight: var(--weight-medium); color: var(--text-primary); margin: 0; }
   .confirm-body  { font-family: var(--font-ui); font-size: var(--text-xs); color: var(--text-faint); line-height: 1.5; margin: 0; letter-spacing: var(--tracking-wide); }
diff --git a/src/lib/core/cache/imageCache.ts b/src/lib/core/cache/imageCache.ts
index 1d4a31e..de6051b 100644
--- a/src/lib/core/cache/imageCache.ts
+++ b/src/lib/core/cache/imageCache.ts
@@ -5,9 +5,9 @@ import { getUIAccessToken }   from "$lib/core/auth";
 const cache    = new Map<string, string>();
 const inflight = new Map<string, Promise<string>>();
 const MAX_CONCURRENT = 6;
-let   active   = 0;
+let   active         = 0;
 let   drainScheduled = false;
-let   clearing = false;
+let   generation     = 0;
 
 interface QueueEntry {
   url:      string;
@@ -32,10 +32,11 @@ async function getAuthHeaders(): Promise<Record<string, string>> {
   return {};
 }
 
-async function doFetch(url: string): Promise<string> {
+async function doFetch(url: string, gen: number): Promise<string> {
   const headers = await getAuthHeaders();
-  const blob = await platformService.fetchImage(url, headers);
-  if (clearing) throw new DOMException("Cancelled", "AbortError");
+  if (gen !== generation) throw new DOMException("Cancelled", "AbortError");
+  const blob    = await platformService.fetchImage(url, headers);
+  if (gen !== generation) throw new DOMException("Cancelled", "AbortError");
   const blobUrl = URL.createObjectURL(blob);
   cache.set(url, blobUrl);
   return blobUrl;
@@ -55,8 +56,9 @@ function drain() {
   drainScheduled = false;
   while (active < MAX_CONCURRENT && queue.length > 0) {
     const entry = queue.shift()!;
+    const gen   = generation;
     active++;
-    doFetch(entry.url)
+    doFetch(entry.url, gen)
       .then(entry.resolve, entry.reject)
       .finally(() => { active--; drain(); });
   }
@@ -107,6 +109,7 @@ export function preloadBlobUrls(urls: string[], basePriority = 0): void {
 export function revokeBlobUrl(url: string): void {
   const blob = cache.get(url);
   if (blob) { URL.revokeObjectURL(blob); cache.delete(url); }
+  inflight.delete(url);
 }
 
 export function deprioritizeQueue(): void {
@@ -123,10 +126,9 @@ export function cancelQueuedFetches(): void {
 }
 
 export function clearBlobCache(): void {
-  clearing = true;
+  generation++;
   cancelQueuedFetches();
+  inflight.clear();
   cache.forEach(blob => URL.revokeObjectURL(blob));
   cache.clear();
-  inflight.clear();
-  clearing = false;
 }
\ No newline at end of file
diff --git a/src/lib/core/cache/pageCache.ts b/src/lib/core/cache/pageCache.ts
index 10eec47..ffbafd8 100644
--- a/src/lib/core/cache/pageCache.ts
+++ b/src/lib/core/cache/pageCache.ts
@@ -1,5 +1,5 @@
-import { getBlobUrl, preloadBlobUrls } from "$lib/core/cache/imageCache";
-import { settingsState }               from "$lib/state/settings.svelte";
+import { getBlobUrl, preloadBlobUrls, revokeBlobUrl } from "$lib/core/cache/imageCache";
+import { settingsState }                               from "$lib/state/settings.svelte";
 
 const pageCache        = new Map<number, string[]>();
 const inflight         = new Map<number, Promise<string[]>>();
@@ -90,6 +90,9 @@ export function preloadImage(url: string, useBlob: boolean): void {
 }
 
 export function clearResolvedUrlCache(): void {
+  for (const promise of resolvedUrlCache.values()) {
+    promise.then(blobUrl => { if (blobUrl) revokeBlobUrl(blobUrl); }).catch(() => {});
+  }
   resolvedUrlCache.clear();
   aspectCache.clear();
 }
diff --git a/src/lib/core/discord.ts b/src/lib/core/discord.ts
index 8c98842..b7d2165 100644
--- a/src/lib/core/discord.ts
+++ b/src/lib/core/discord.ts
@@ -1,4 +1,5 @@
 import { platformService } from '$lib/platform-service'
+import { settingsState }   from '$lib/state/settings.svelte'
 import type { Manga }      from '$lib/types/manga'
 import type { Chapter }    from '$lib/types/chapter'
 
@@ -9,11 +10,8 @@ const APP_BUTTONS = [
 
 const FALLBACK_IMAGE = 'moku_logo'
 
-let sessionStart: number | null = null
-
-function isPublicUrl(url: string | null | undefined): boolean {
-  return typeof url === 'string' && url.startsWith('https://')
-}
+let sessionStart:  number | null = null
+let activeMangaId: number | null = null
 
 function trunc(s: string, max = 128): string {
   return s.length <= max ? s : `${s.slice(0, max - 1)}…`
@@ -24,6 +22,31 @@ function formatChapter(chapter: Chapter): string {
   return `Chapter ${Number.isInteger(n) ? n : n.toFixed(1)}`
 }
 
+// Suwayomi always returns the proxy path (/api/v1/manga/{id}/thumbnail), never the raw CDN URL.
+// The proxy URL is only useful to Discord when the server is publicly reachable over HTTPS.
+// For localhost setups cover art falls back to the app logo until Suwayomi exposes rawThumbnailUrl.
+function resolveCoverUrl(manga: Manga): string {
+  const serverBase = (settingsState.settings.serverUrl ?? '').replace(/\/$/, '')
+  if (!serverBase.startsWith('https://')) return FALLBACK_IMAGE
+  const path = manga.thumbnailUrl?.startsWith('/') ? manga.thumbnailUrl : `/api/v1/manga/${manga.id}/thumbnail`
+  return `${serverBase}${path}`
+}
+
+function buildPresence(manga: Manga, chapter: Chapter, coverUrl: string) {
+  return {
+    details:    trunc(manga.title),
+    state:      `${formatChapter(chapter)}  ·  Reading`,
+    timestamps: { start: sessionStart ?? Date.now() },
+    assets: {
+      largeImage: coverUrl,
+      largeText:  trunc(manga.title),
+      smallImage: FALLBACK_IMAGE,
+      smallText:  'Moku',
+    },
+    buttons: APP_BUTTONS,
+  }
+}
+
 export async function initRpc(): Promise<void> {
   if (!platformService.isSupported('discord-rpc')) return
   sessionStart = Date.now()
@@ -36,18 +59,9 @@ export async function destroyRpc(): Promise<void> {
 
 export async function setReading(manga: Manga, chapter: Chapter): Promise<void> {
   if (!platformService.isSupported('discord-rpc')) return
-  await platformService.setDiscordPresence({
-    details:    trunc(manga.title),
-    state:      `${formatChapter(chapter)}  ·  Reading`,
-    timestamps: { start: sessionStart ?? Date.now() },
-    assets: {
-      largeImage: isPublicUrl(manga.thumbnailUrl) ? manga.thumbnailUrl : FALLBACK_IMAGE,
-      largeText:  trunc(manga.title),
-      smallImage: FALLBACK_IMAGE,
-      smallText:  'Moku',
-    },
-    buttons: APP_BUTTONS,
-  })
+
+  activeMangaId = manga.id
+  await platformService.setDiscordPresence(buildPresence(manga, chapter, resolveCoverUrl(manga)))
 }
 
 export async function setIdle(): Promise<void> {
diff --git a/src/lib/state/app.svelte.ts b/src/lib/state/app.svelte.ts
index 8e4e1f3..2f302d1 100644
--- a/src/lib/state/app.svelte.ts
+++ b/src/lib/state/app.svelte.ts
@@ -36,6 +36,7 @@ export const appState = $state({
   toasts:        [] as unknown[],
   appDir:        '',
   idleSplash:    false,
+  devSplash:     false,
 })
 
 export function setSettingsOpen(next: boolean)        { app.setSettingsOpen(next) }
diff --git a/src/lib/state/library.svelte.ts b/src/lib/state/library.svelte.ts
index 4aaf7b3..b6d9038 100644
--- a/src/lib/state/library.svelte.ts
+++ b/src/lib/state/library.svelte.ts
@@ -204,10 +204,18 @@ class LibraryState {
     this.tabFilters = { ...this.tabFilters, [tab]: {} };
   }
 
-  syncFromSettings(s: { hiddenLibraryTabs?: string[]; libraryPinnedTabOrder?: string[]; defaultLibraryCategoryId?: number | null }) {
-    if (s.hiddenLibraryTabs)      this.hiddenTabs        = new Set(s.hiddenLibraryTabs);
-    if (s.libraryPinnedTabOrder)  this.pinnedTabOrder    = s.libraryPinnedTabOrder;
-    if (s.defaultLibraryCategoryId !== undefined) this.defaultCategoryId = s.defaultLibraryCategoryId ?? null;
+  syncFromSettings(s: {
+    hiddenLibraryTabs?:          string[];
+    libraryPinnedTabOrder?:      string[];
+    defaultLibraryCategoryId?:   number | null;
+    libraryShowAllInSaved?:      boolean;
+    libraryHideCompletedInSaved?: boolean;
+  }) {
+    if (s.hiddenLibraryTabs)                        this.hiddenTabs          = new Set(s.hiddenLibraryTabs);
+    if (s.libraryPinnedTabOrder)                    this.pinnedTabOrder      = s.libraryPinnedTabOrder;
+    if (s.defaultLibraryCategoryId !== undefined)   this.defaultCategoryId   = s.defaultLibraryCategoryId ?? null;
+    if (s.libraryShowAllInSaved !== undefined)       this.showAllInSaved      = s.libraryShowAllInSaved;
+    if (s.libraryHideCompletedInSaved !== undefined) this.hideCompletedInSaved = s.libraryHideCompletedInSaved;
   }
 
   setCategories(cats: Category[]) {
diff --git a/src/lib/state/reader.svelte.ts b/src/lib/state/reader.svelte.ts
index a979389..696d7b9 100644
--- a/src/lib/state/reader.svelte.ts
+++ b/src/lib/state/reader.svelte.ts
@@ -80,10 +80,11 @@ class ReaderState {
   get settings() { return settingsState.settings; }
 
   openReader(chapter: Chapter, chapterList: Chapter[], manga?: Manga | null) {
+    const isChapterNav = this.activeChapter !== null;
     this.activeChapter     = chapter;
     this.activeChapterList = chapterList;
     if (manga !== undefined) this.activeManga = manga;
-    goto(`/reader/${this.activeManga!.id}/${chapter.id}`);
+    goto(`/reader/${this.activeManga!.id}/${chapter.id}`, { replaceState: isChapterNav });
   }
 
   closeReader() {
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index f1f6362..d16a939 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -34,13 +34,12 @@
 
   const isTauri = typeof window !== 'undefined' && '__TAURI_INTERNALS__' in window
 
-  let _splashDismissed = $state(false)
-  let bypassed         = $state(false)
-  let themeEditorOpen  = $state(false)
-  let themeEditorId    = $state<string | null>(null)
+  let splashDismissed = $state(false)
+  let themeEditorOpen = $state(false)
+  let themeEditorId   = $state<string | null>(null)
 
   const splashVisible = $derived(
-    !_splashDismissed ||
+    !splashDismissed ||
     appState.status === 'booting' ||
     appState.status === 'locked'  ||
     appState.status === 'error'   ||
@@ -48,17 +47,16 @@
   )
 
   const ringFull = $derived(appState.status === 'ready')
+  const showApp  = $derived(!splashVisible)
 
-  const showApp = $derived(
-    !splashVisible && (
-      appState.status === 'ready' ||
-      bypassed
-    )
-  )
-
-  function onSplashReady()  { _splashDismissed = true }
-  function onSplashUnlock() { appState.status = 'ready'; _splashDismissed = true }
-  function onSplashBypass() { bypassed = true; _splashDismissed = true }
+  function onSplashReady()  { splashDismissed = true }
+  function onSplashUnlock() { appState.status = 'ready'; splashDismissed = true }
+  function onSplashBypass() {
+    import('$lib/state/boot.svelte').then(({ bypassBoot }) => {
+      bypassBoot(appState.authMode ?? 'NONE', appState.authUser ?? '', appState.authPass ?? '')
+    })
+    splashDismissed = true
+  }
 
   const isReaderRoute       = $derived($page.url.pathname.startsWith('/reader'))
   const readerContainerized = $derived(settingsState.settings.readerContainerized ?? false)
@@ -141,10 +139,40 @@
   })
 
   $effect(() => {
-    if (appState.status === 'booting') _splashDismissed = false
+    if (appState.status === 'booting') splashDismissed = false
   })
 
-  function onIdleDismiss() { appState.idleSplash = false }
+  let idleTimer:       ReturnType<typeof setTimeout> | null = null
+  let idleDismissLock = false
+
+  function onIdleDismiss() {
+    if (idleDismissLock) return
+    idleDismissLock = true
+    appState.idleSplash = false
+    setTimeout(() => { idleDismissLock = false }, 400)
+  }
+
+  function armIdleTimer() {
+    if (idleTimer !== null) clearTimeout(idleTimer)
+    const mins = settingsState.settings.idleTimeoutMin ?? 5
+    if (mins <= 0) return
+    idleTimer = setTimeout(() => {
+      if (appState.status === 'ready' && !appState.idleSplash) appState.idleSplash = true
+    }, mins * 60_000)
+  }
+
+  $effect(() => {
+    if (appState.status !== 'ready') return
+
+    const events = ['mousemove', 'mousedown', 'keydown', 'touchstart', 'touchmove', 'wheel', 'click'] as const
+    for (const e of events) document.addEventListener(e, armIdleTimer, { capture: true, passive: true })
+    armIdleTimer()
+
+    return () => {
+      if (idleTimer !== null) { clearTimeout(idleTimer); idleTimer = null }
+      for (const e of events) document.removeEventListener(e, armIdleTimer, { capture: true })
+    }
+  })
 
   function onSplashRetry() {
     import('$lib/state/boot.svelte').then(({ retryBoot }) => {
@@ -174,7 +202,11 @@
 {/if}
 
 {#if appState.idleSplash}
-  <SplashScreen mode="idle" onDismiss={onIdleDismiss} />
+  <SplashScreen mode="idle" showCards={settingsState.settings.splashCards ?? true} onDismiss={onIdleDismiss} />
+{/if}
+
+{#if appState.devSplash}
+  <SplashScreen mode="idle" showDevOverlay onDismiss={() => appState.devSplash = false} />
 {/if}
 
 {#if showApp}