Copy pageCopy pageCopy this page as Markdown for LLMsView as MarkdownView this page as plain textOpen in ClaudeAsk questions about this pageOpen in ChatGPTAsk questions about this pageOn this pageCanvasShadowStylesExtended by CanvasRenderingContext2D OffscreenCanvasRenderingContext2D Properties shadowBlur shadowBlur: number; MDN Reference shadowColor shadowColor: string; MDN Reference shadowOffsetX shadowOffsetX: number; MDN Reference shadowOffsetY shadowOffsetY: number; MDN Reference