rover based colors!

webui/src/components/Tabs/index.jsx

@@ -2,6 +2,7 @@
 // Purpose: Defines the Tabs module and the local helpers/components used in this file.
 // Scope: Keeps behavior unchanged while isolating this concern into a clear, single-responsibility unit.
 import { createContext, useCallback, useContext, useMemo, useState, useEffect } from 'react';
+import { useSessionSelector } from '../../context/SessionContext.jsx';
 
 const TabsContext = createContext(null);
 
@@ -33,6 +34,28 @@ function classNames(...parts) {
   return parts.filter(Boolean).join(' ');
 }
 
+function hexToRgb(hex) {
+  const raw = String(hex || '').trim();
+  const normalized = raw.startsWith('#') ? raw.slice(1) : raw;
+  if (!/^[0-9a-fA-F]{3}$|^[0-9a-fA-F]{6}$/.test(normalized)) return null;
+  const expanded =
+    normalized.length === 3
+      ? normalized
+          .split('')
+          .map((ch) => ch + ch)
+          .join('')
+      : normalized;
+  return {
+    r: Number.parseInt(expanded.slice(0, 2), 16),
+    g: Number.parseInt(expanded.slice(2, 4), 16),
+    b: Number.parseInt(expanded.slice(4, 6), 16),
+  };
+}
+
+function rgba(rgb, alpha) {
+  return `rgba(${rgb.r}, ${rgb.g}, ${rgb.b}, ${alpha})`;
+}
+
 export default function Tabs({ children, defaultTab, currentTab, onTabChange, variant = DEFAULT_VARIANT }) {
   const [internalTab, setInternalTab] = useState(defaultTab ?? null);
   const [tabOrder, setTabOrder] = useState([]);
@@ -95,7 +118,32 @@ export default function Tabs({ children, defaultTab, currentTab, onTabChange, va
 }
 
 export function TabList({ children, className = '' }) {
-  return <div className={classNames('flex gap-0.5', className)}>{children}</div>;
+  const ownRoverColor = useSessionSelector((state) => {
+    const roverId = String(state.session?.assignment?.roverId || '').trim();
+    if (!roverId) return null;
+    const roster = Array.isArray(state.session?.roster) ? state.session.roster : [];
+    const rover = roster.find((entry) => String(entry?.id) === roverId);
+    return rover?.color || null;
+  });
+  const accentRgb = hexToRgb(ownRoverColor);
+  const frameStyle = accentRgb ? { borderColor: rgba(accentRgb, 0.35) } : undefined;
+  const headerStyle = accentRgb
+    ? {
+        backgroundImage: `linear-gradient(90deg, rgba(23,23,23,0.96) 0%, rgba(38,38,38,0.94) 58%, ${rgba(accentRgb, 0.18)} 100%)`,
+      }
+    : undefined;
+
+  return (
+    <div
+      className={classNames(
+        'panel-section overflow-hidden border border-neutral-500/60 bg-neutral-900/95 p-0.5 shadow-[0_1px_0_rgba(255,255,255,0.05)_inset,0_10px_24px_rgba(0,0,0,0.28)]',
+        className
+      )}
+      style={frameStyle}
+    >
+      <div className="flex gap-0.5" style={headerStyle}>{children}</div>
+    </div>
+  );
 }
 
 export function Tab({ id, children, className = '', disabled = false, highlight = 'none' }) {