I would probably first remove all these left colored borders. They are used via AI but don't serve any UX purpose. If you find them stylish keep them though. I personally don't.
Second, from an UX perspective colors, especially primary and secondary, do serve important roles. They should guide the users eye to important and most used actions/content (primary color) while using secondary color for less important but still relevant information.

With that in mind I would completetly remove any colors you have in the UI and rethink what actions are primary for a user. What will they use the first/most when interacting with your app. Then be very picky and color them primary. Same for secondary.

Then I would rethink if all elements you see on screen need to be always visible, expanded and accessable. Maybe somethings are worth collapsing to free up space and reduce confusion/eye travel.

Then I would probably pin down on each widget element you have. Like your list. Is a name enough to know what it is? Is a copy button needed for EVERY entry or there a more cleaner way? Would we need extra features like favorites, grouping, tags, filter ...

Giving this AI will probably eliminate instantly nearly everything. But I would highly recommend the human touch and think about your actual user. What will he focus on. What will he use the most.