See my post on Reddit for mock up picture.
/r/atera/comments/1l8qivn/uilikeimachildsidebarandtickets_page/

Ticket’s page.
Remove duplication. Text or Icon. PICK ONE!
Contrast on objects. Make things stand out.
Resizing, things should be adjustable. (so we can see useful info.)
Dead space, so much is wasted.
Colour, even colour-blind people can see at least two colours and bits in between.
BAN GRAY! If it’s a primary action make it black or a high contract colour.
Columns would be nice if we could select / make our own page. (we can dream)