feat(ui): design tokens + light/dark theming, migrate in-game chrome (F1a)

Introduce the shared design-token system under ui/frontend/src/lib/theme/: tokens.css (dark default + light palette, plus spacing/radii/typography scales), base.css global baseline (document background, text, token focus ring, selection), and theme.svelte.ts (system/light/dark choice, persisted to localStorage, applied via data-theme on <html>). A pre-paint guard in app.html resolves the theme before the app boots to avoid a flash, and the theme picker is wired into the previously-disabled account-menu stub. Migrate the always-visible in-game chrome to the tokens (header, account menu, sidebar, tab-bar, bottom-tabs, shell background): dark renders as before, light comes for free. The default stays dark during the incremental migration; the remaining view bodies migrate in F1b. Docs: ui/docs/design-system.md (+ index entry). Test: tests/theme.test.ts. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-22 07:02:13 +02:00
parent 44ed0a90eb
commit 973480d812
16 changed files with 560 additions and 53 deletions
@@ -11,6 +11,26 @@
 				margin: 0;
 			}
 		</style>
+		<script>
+			// Pre-paint theme guard: resolve the stored theme choice before
+			// the app boots so first paint matches and never flashes. Mirrors
+			// $lib/theme/theme.svelte.ts; keep the two in sync.
+			(function () {
+				try {
+					var c = localStorage.getItem("galaxy-theme");
+					var resolved =
+						c === "light" || c === "dark"
+							? c
+							: window.matchMedia &&
+								  window.matchMedia("(prefers-color-scheme: light)").matches
+								? "light"
+								: "dark";
+					document.documentElement.dataset.theme = resolved;
+				} catch (e) {
+					document.documentElement.dataset.theme = "dark";
+				}
+			})();
+		</script>
 		%sveltekit.head%
 	</head>
 	<body data-sveltekit-preload-data="hover">