It would be awesome if Merge Reviews could leverage the Show Outlines view in Figma, as another way to display visual changes in the merge review window.
For example, in Chromatic, there’s a mode that does this when reviewing changes. This would also alleviate the issue when you have a transparent element (lets say a Text button), that has changes to padding, but optically you don’t see any change if you didn’t look at the properties listed below the rendered preview.
Example in Chromatic:
