Tldraw/apps/examples/src/examples/speech-bubble/SpeechBubble/SpeechBubbleTool.tsx

import { BaseBoxShapeTool } from '@tldraw/tldraw'

export class SpeechBubbleTool extends BaseBoxShapeTool {
	static override id = 'speech-bubble'
	static override initial = 'idle'
	override shapeType = 'speech-bubble'
}