Visualizations pane all the same color so extremely difficult to use. Inconsistent UI

The groups and settings section in the Visualizations pane where you configure a visual, are all the same shade of grey, making it extremely difficult to navigate (expand Title, Background and Border and see how difficult this to navigate). This is become more of an issue as the product is evolving and there are more settings available on visuals.
A search box like on the Fields pane would also be nice.
This is also inconsistent with the Fields pane, which is a bit easier to use as the table is in darker grey than the fields. This still needs more contrast IMO to make it easier to use.