I can’t seem to find any way to search for highlighted text. It would be great if I could search for everything I highlighted, or better yet everything I highlighted in a specific color. This way, I could use highlighting as a metadata level in the database. For example, everything highlighted in yellow is text pertaining to software tool use. This would allow DevonThink to be used for basic qualitative data analysis (among other things). Of course, the ability to pick additional colors (or to assign label names to colors) would be even more useful. Something to think about.
I vaguely remember discussion about that maybe six months ago but unfortunately the forum search isn’t cooperating so I can’t find the topic…
… but I just dredged up a copy in my DEVONthink database and used that to find it:
That probably covers your question/request.