Let canvas toolbar inherit the editor preference accent

packages/block-editor/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/block-editor",
-  "version": "0.1.11",
+  "version": "0.1.12",
   "type": "module",
   "description": "Hydrated accessible editor runtime for WRNexus block documents.",
   "exports": {

packages/block-editor/src/live-canvas.ts

@@ -21,7 +21,7 @@ export function showBuilderBlockActions(canvas: Document, id: string, label: str
   toolbar.dataset.builderBlockActions = "";
   toolbar.setAttribute("role", "toolbar");
   toolbar.setAttribute("aria-label", label + " actions");
-  toolbar.style.cssText = "position:absolute;z-index:100;display:flex;gap:2px;align-items:center;padding:3px;box-sizing:border-box;max-width:100%;border-radius:6px;background:#7c3aed;color:white;font:11px Arial;box-shadow:0 3px 12px #0003";
+  toolbar.style.cssText = "position:absolute;z-index:100;display:flex;gap:2px;align-items:center;padding:3px;box-sizing:border-box;max-width:100%;border-radius:6px;background:var(--wrn-builder-accent,var(--wrn-color-primary,#2563eb));color:white;font:11px Arial;box-shadow:0 3px 12px #0003";
   const name = canvas.createElement("strong");
   name.textContent = label.split(" — ")[0];
   name.title = label;