A useful feature would be a hex code seek & replace.
We have had a few clients change corporate colors and we generally have any part of a document that is custom to them and non standard in their color(s), or sometimes the team decides that a particular color that is used across hundreds of documents (either directly in the document or via a snippet) just isnt readable and should be changed.
Doing this across hundreds of documents and snippets can can many hours, if there was a way to have a feature where you input the current hex and replace with a new one it would save a lot of time