@dwbitw To be clear, I have seen plenty of requests on the forum about UI improvements, but these have all been requests to improve functionality (e.g., placement of icons and buttons, consistency of UX in different views of the extension, ability to resize the browser extension window, etc.), hardly ever about visual appearance (in such cases, the requests have been primarily related to color scheme preferences).
It would be nice of major changes to UI/UX could be previewed by the community for feedback before implementation work begins. I think you will find that most users will prioritize functionality over appearance (not to say that the visual design can’t be refreshed from time to time, but not at the expense of lost functionality).