Commit 06c3e2a32ca5

@@ -334,14 +334,28 @@ function orderedModeNames(modes: Record<string, ModeSpec>): string[] {
 	return Object.keys(modes).filter((name) => name !== CUSTOM_MODE_NAME);
 }
 
+/** Convert hex color (#rrggbb) to 24-bit ANSI foreground escape sequence */
+function hexToAnsi(hex: string): string {
+	const h = hex.replace("#", "");
+	const r = parseInt(h.substring(0, 2), 16);
+	const g = parseInt(h.substring(2, 4), 16);
+	const b = parseInt(h.substring(4, 6), 16);
+	return `\x1b[38;2;${r};${g};${b}m`;
+}
+
 function getModeBorderColor(ctx: ExtensionContext, pi: ExtensionAPI, mode: string): (text: string) => string {
 	const theme = ctx.ui.theme;
 	const spec = runtime.data.modes[mode];
 
-	// Explicit color override in JSON.
+	// Hex color from modes.json
+	if (spec?.color && /^#[0-9a-fA-F]{6}$/.test(spec.color)) {
+		const ansi = hexToAnsi(spec.color);
+		return (text: string) => `${ansi}${text}\x1b[0m`;
+	}
+
+	// Theme token fallback
 	if (spec?.color) {
 		try {
-			// Validate early so we don't crash during render.
 			theme.getFgAnsi(spec.color as any);
 			return (text: string) => theme.fg(spec.color as any, text);
 		} catch {