This new dark mode that has the bright blue fading to purple is *horrid* and causes a bunch of clashing of colours with labels when looking at the sprint boards and such. A huge block of bright blue is definitely NOT what I could call a dark mode and is painful to look at. Another huge UI/UX miss from Atlassian, especially with no way to customise it.
Edit: Just kidding, you can edit it (hidden in a submenu, no less), but the default changed to the awful gradient on some of my spaces haha