kartal, Thanks for the feedback.
Not sure what the firefox issue is. When I drag text from firefox to a folder in the toolbar dock, it creates a new snippet fine. I just need to type a description and save.
As far as dark themes, go, I am using a control vendor that provides themes, so until they make another layout available, i will add it.
Drag and Drop for the main window is something I am working on. That whole window is new to the program, it used to be a separate popup window for each snippet.
Search highlighting is a great idea, and something I will consider for the next point release.