It would be best if you checked out Krita Next from the website (make sure to backup your resources and configuration!) and then kind of build upon what’s already there.
And please do note that considering that (1) quite a lot of people still have low resolution screens (or don’t know that Windows applies 150% UI scaling for fullHD…), (2) will be painting or animating on somewhat small Android devices, or (3) have bad sight and need to use bigger UI scaling than a person with good sight would use, you need to be quite mindful about how small the controls and widgets are. It might be best to screenshot Krita as it is on fullHD and make sure that you’re not making things too small for this size of the interface.