Merge issue-49 (Refs #49)

# Conflicts:
#	craft/src/styles/editor.css

craft/src/styles/editor.css

@@ -2810,3 +2810,91 @@ body {
   border: 0;
   cursor: pointer;
 }
+
+/* #49 palette */
+.wsb-palette {
+  width: 100%;
+  background: var(--color-surface, #1e1e24);
+  color: var(--color-text);
+  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
+  border-radius: var(--radius-md);
+  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
+  overflow: hidden;
+}
+
+.wsb-palette-input {
+  width: 100%;
+  box-sizing: border-box;
+  padding: 14px 16px;
+  font: inherit;
+  font-size: 15px;
+  color: inherit;
+  background: transparent;
+  border: 0;
+  border-bottom: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
+  outline: none;
+}
+
+.wsb-palette-list {
+  max-height: 340px;
+  margin: 0;
+  padding: 4px;
+  overflow-y: auto;
+  list-style: none;
+}
+
+.wsb-palette-item {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 8px 12px;
+  font-size: 13px;
+  border-radius: var(--radius-sm, 4px);
+  cursor: pointer;
+}
+
+.wsb-palette-item.is-active {
+  background: var(--color-accent-subtle);
+}
+
+.wsb-palette-group {
+  flex: 0 0 84px;
+  font-size: 10px;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  opacity: 0.6;
+}
+
+.wsb-palette-title {
+  flex: 1 1 auto;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.wsb-palette-sub {
+  font-size: 11px;
+  opacity: 0.6;
+}
+
+.wsb-palette-kbd {
+  font: inherit;
+  font-size: 11px;
+  padding: 1px 6px;
+  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.2));
+  border-radius: 4px;
+}
+
+.wsb-palette-empty {
+  padding: 12px;
+  font-size: 13px;
+  opacity: 0.6;
+}
+
+.wsb-palette-tip {
+  padding: 8px 14px;
+  font-size: 11px;
+  opacity: 0.7;
+  border-top: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
+}