Widgets with opacity 0 are not being shown when highlight repaints is selected

I made a (stupid) mistake and used a spinner inside a stack with animated opacity to fade in smoothly.
I saw that my app was using a lot of compute power when I thought nothing was being rendered because the "highlight repaint" feature did not highlight any repaints. In fact the spinner was constantly being rendered but I didnt spot my (stupid) mistake with the animated opacity.
IMO it would be cool if highlight repaint could somehow still highlight repaints even when the opacity is 0 (transparent pixels?)
Thanks for developing this tool and best regards :)

该 issue 未指出实现文件、入口点或测试。首先定位 DevTools 的 Highlight Repaints 实现及其与渲染相关的测试，然后确定如何处理不透明度为零的 widget，并在提出更改之前定义预期的重绘高亮行为。

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