allow Tool to be function

packages/svelte/src/toolbar/configure.js

@@ -12,7 +12,10 @@ const config = {
 export function configure(options) {
 	for (const [key, value] of options) {
 		if (key === 'tools') {
-			for (const tool of /** @type {import('./public.d.ts').Tool[]}*/ value) {
+			for (let tool of /** @type {import('./public.d.ts').Config.tools[0][]}*/ value) {
+				if(typeof tool === 'function') {
+					tool = tool();
+				}
 				const existing = config.tools.find((t) => t.name === tool.name);
 				if (existing) {
 					for (const [k, v] of tool) {

packages/svelte/src/toolbar/public.d.ts

@@ -8,7 +8,9 @@ export interface Tool {
 	keyCombo?: string;
 	disabled?: boolean;
 }
+type ToolFn = ()=>Tool
+
 export interface Config {
 	position?: 'top' | 'bottom';
-	tools?: Tool[];
+	tools?: (Tool | ToolFn)[];
 }