Various color picker improvements

js/template/IDraggablePositionedTemplate.js

@@ -0,0 +1,21 @@
+import IDraggableTemplate from "./IDraggableTemplate"
+
+/** @typedef {import("../element/IDraggableElement").default} IDraggableElement */
+
+/**
+ * @template {IDraggableElement} T
+ * @extends {IDraggableTemplate<T>}
+ */
+export default class IDraggablePositionedTemplate extends IDraggableTemplate {
+
+    /** @param {Map} changedProperties */
+    update(changedProperties) {
+        super.update(changedProperties)
+        if (changedProperties.has("locationX")) {
+            this.element.style.left = `${this.element.locationX}px`
+        }
+        if (changedProperties.has("locationY")) {
+            this.element.style.top = `${this.element.locationY}px`
+        }
+    }
+}