Update toolbar button style

src/dom_components/view/ToolbarButtonView.js

@@ -39,9 +39,11 @@ module.exports = Backbone.View.extend({
 
   render() {
     const { editor, $el, model } = this;
+    const id = model.get('id');
     const label = model.get('label');
     const pfx = editor.getConfig('stylePrefix');
     $el.addClass(`${pfx}toolbar-item`);
+    id && $el.addClass(`${pfx}toolbar-item__${id}`);
     label && $el.append(label);
     return this;
   }

src/styles/scss/_gjs_canvas.scss

@@ -88,6 +88,7 @@ $canvasTop: 40px;
   padding: 5px 7px;
   font-size: 0.8rem;
   cursor: pointer;
+  fill: currentColor;
 }
 
 .#{$app-prefix}resizer-c {