Currently there is no diff component in the DSG.
It's an important part of MediaWiki software and current wiki projects.

Desktop	Mobile

Source:

As part of the efforts of WVUI, we should create a component that:

• Ensures the colors are aligned with the Wikimedia color palette or extend the palette if necessary
• Works with the current cases in use – see existing task T90948

Task was spliced out of T280670