[V1] Patched MangaPreview & Added Themes (Contrast)

src/components/settings/Settings.module.css

@@ -458,4 +458,104 @@
 .folderTabToggleOn:hover {
   background: var(--accent-muted);
   color: var(--accent-fg);
+}
+
+/* ─── Theme picker ── */
+.themeGrid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: var(--sp-2);
+  padding: var(--sp-2) var(--sp-3);
+}
+
+.themeCard {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  gap: var(--sp-2);
+  padding: var(--sp-2);
+  border-radius: var(--radius-md);
+  border: 1px solid var(--border-dim);
+  background: var(--bg-raised);
+  cursor: pointer;
+  text-align: left;
+  transition: border-color var(--t-base), background var(--t-base);
+}
+.themeCard:hover { border-color: var(--border-strong); background: var(--bg-overlay); }
+.themeCardActive {
+  border-color: var(--accent);
+  background: var(--accent-muted);
+}
+.themeCardActive:hover { border-color: var(--accent); }
+
+.themePreview {
+  width: 100%;
+  aspect-ratio: 16 / 9;
+  border-radius: var(--radius-sm);
+  overflow: hidden;
+  border: 1px solid rgba(0,0,0,0.15);
+  flex-shrink: 0;
+}
+
+.themePreviewBg {
+  width: 100%; height: 100%;
+  display: flex;
+}
+
+.themePreviewSidebar {
+  width: 22%;
+  height: 100%;
+  flex-shrink: 0;
+  opacity: 0.9;
+}
+
+.themePreviewContent {
+  flex: 1;
+  padding: 10% 12%;
+  display: flex;
+  flex-direction: column;
+  gap: 8%;
+  justify-content: center;
+}
+
+.themePreviewAccent {
+  height: 14%;
+  border-radius: 2px;
+  width: 55%;
+}
+
+.themePreviewText {
+  height: 9%;
+  border-radius: 2px;
+  width: 100%;
+}
+
+.themeCardInfo {
+  display: flex;
+  flex-direction: column;
+  gap: 1px;
+}
+
+.themeCardLabel {
+  font-size: var(--text-xs);
+  font-weight: var(--weight-medium);
+  color: var(--text-secondary);
+  line-height: var(--leading-tight);
+}
+
+.themeCardDesc {
+  font-family: var(--font-ui);
+  font-size: var(--text-2xs);
+  color: var(--text-faint);
+  letter-spacing: var(--tracking-wide);
+  line-height: var(--leading-snug);
+}
+
+.themeCardCheck {
+  position: absolute;
+  top: var(--sp-1);
+  right: var(--sp-2);
+  font-size: var(--text-xs);
+  color: var(--accent-fg);
+  font-family: var(--font-ui);
 }