Replace all emoji icons with Lucide SVGs, add accent color picker

- Replace all emoji characters across WebUI with inline Lucide SVG icons
  for cross-platform consistency (icon paths in icon-paths.js)
- Add accent color picker popover with 9 preset colors + custom picker,
  persisted to localStorage, updates all CSS custom properties
- Remove subtab separator line for cleaner look
- Color badge icons with accent color for visual pop
- Remove processing badge from target cards
- Fix hardcoded #4CAF50 in FPS labels and active badges to use CSS vars
- Replace CSS content emoji (▶) with pure CSS triangle

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/wled_controller/static/css/base.css

@@ -6,9 +6,25 @@
 
 :root {
     --primary-color: #4CAF50;
+    --primary-hover: #5cb860;
     --danger-color: #f44336;
     --warning-color: #ff9800;
     --info-color: #2196F3;
+    --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'SF Mono', 'Consolas', 'Liberation Mono', monospace;
+}
+
+/* ── SVG icon base ── */
+.icon {
+    display: inline-block;
+    width: 1em;
+    height: 1em;
+    vertical-align: -0.125em;
+    fill: none;
+    stroke: currentColor;
+    stroke-width: 2;
+    stroke-linecap: round;
+    stroke-linejoin: round;
+    flex-shrink: 0;
 }
 
 /* Dark theme (default) */

server/src/wled_controller/static/css/cards.css

@@ -312,6 +312,10 @@ body.cs-drag-active .card-drag-handle {
     font-size: 0.6rem;
 }
 
+.device-url-badge .icon {
+    color: var(--primary-text-color);
+}
+
 .card-subtitle {
     display: flex;
     align-items: center;
@@ -328,6 +332,10 @@ body.cs-drag-active .card-drag-handle {
     gap: 4px;
 }
 
+.card-meta .icon {
+    color: var(--primary-text-color);
+}
+
 .device-type-badge {
     font-size: 10px;
     font-weight: 700;
@@ -647,7 +655,7 @@ ul.section-tip li {
     font-weight: 400;
     opacity: 0.45;
     line-height: 1.1;
-    color: #4CAF50;
+    color: var(--primary-color);
 }
 
 .fps-unreachable {

server/src/wled_controller/static/css/dashboard.css

@@ -192,7 +192,7 @@
     font-weight: 400;
     opacity: 0.45;
     line-height: 1.1;
-    color: #4CAF50;
+    color: var(--primary-color);
 }
 
 .dashboard-target-actions {
@@ -258,7 +258,7 @@
     border-radius: 10px;
     font-size: 0.7rem;
     font-weight: 600;
-    background: var(--success-color);
+    background: var(--primary-color);
     color: #fff;
     flex-shrink: 0;
 }

server/src/wled_controller/static/css/layout.css

@@ -216,6 +216,81 @@ h2 {
     transform: scale(1.1);
 }
 
+/* Accent color picker */
+.accent-wrapper {
+    position: relative;
+}
+.accent-swatch {
+    display: inline-block;
+    width: 14px;
+    height: 14px;
+    border-radius: 50%;
+    border: 2px solid var(--border-color);
+    transition: border-color 0.2s, box-shadow 0.2s;
+}
+.search-toggle:hover .accent-swatch {
+    box-shadow: 0 0 6px var(--primary-color);
+}
+.accent-popover {
+    position: absolute;
+    top: calc(100% + 8px);
+    right: 0;
+    background: var(--card-bg);
+    border: 1px solid var(--border-color);
+    border-radius: 10px;
+    padding: 10px;
+    box-shadow: 0 8px 24px var(--shadow-color);
+    z-index: 200;
+    animation: accent-pop-in 0.15s ease-out;
+}
+@keyframes accent-pop-in {
+    from { opacity: 0; transform: translateY(-4px) scale(0.95); }
+    to   { opacity: 1; transform: translateY(0) scale(1); }
+}
+.accent-grid {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+    gap: 8px;
+}
+.accent-dot {
+    width: 32px;
+    height: 32px;
+    border-radius: 50%;
+    border: 3px solid transparent;
+    cursor: pointer;
+    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
+    padding: 0;
+}
+.accent-dot:hover {
+    transform: scale(1.15);
+    box-shadow: 0 0 8px rgba(255,255,255,0.2);
+}
+.accent-dot.active {
+    border-color: var(--text-color);
+    box-shadow: 0 0 0 2px var(--card-bg), 0 0 0 4px var(--text-color);
+}
+.accent-custom {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    margin-top: 8px;
+    padding-top: 8px;
+    border-top: 1px solid var(--border-color);
+    font-size: 0.78rem;
+    color: var(--text-secondary);
+    cursor: pointer;
+}
+.accent-custom input[type="color"] {
+    width: 28px;
+    height: 28px;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    padding: 2px;
+    cursor: pointer;
+    background: transparent;
+    flex-shrink: 0;
+}
+
 /* Footer */
 .app-footer {
     margin-top: 12px;

server/src/wled_controller/static/css/modal.css

@@ -477,8 +477,13 @@
 .form-collapse > summary::-webkit-details-marker { display: none; }
 
 .form-collapse > summary::before {
-    content: '▶';
-    font-size: 0.6rem;
+    content: '';
+    display: inline-block;
+    width: 0;
+    height: 0;
+    border-left: 0.35em solid currentColor;
+    border-top: 0.25em solid transparent;
+    border-bottom: 0.25em solid transparent;
     opacity: 0.6;
     transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
     flex-shrink: 0;

server/src/wled_controller/static/css/patterns.css

@@ -54,6 +54,10 @@
     vertical-align: middle;
 }
 
+.stream-card-prop .icon {
+    color: var(--primary-text-color);
+}
+
 .stream-card-prop-full {
     max-width: 100%;
     word-break: break-all;
@@ -72,6 +76,10 @@
     color: #fff;
 }
 
+.stream-card-link:hover .icon {
+    color: #fff;
+}
+
 @keyframes cardHighlight {
     0%, 100% { box-shadow: none; }
     25%, 75% { box-shadow: 0 0 0 3px var(--primary-color), 0 0 20px rgba(var(--primary-rgb, 59, 130, 246), 0.3); }

server/src/wled_controller/static/css/streams.css

@@ -538,7 +538,6 @@
     display: flex;
     align-items: center;
     gap: 4px;
-    border-bottom: 2px solid var(--border-color);
     margin-bottom: 16px;
 }
 
@@ -551,7 +550,6 @@
     color: var(--text-secondary);
     cursor: pointer;
     border-bottom: 2px solid transparent;
-    margin-bottom: -2px;
     transition: color 0.2s ease, border-color 0.25s ease;
 }