I know you reworked the layout capabilites of the column editor in the left pane to better work with the splitter bar move. The results are nice. I noticed a couple of things that just did not seem correct.
What I am seeing with v2.90
The Genre text is now right-aligned in the drop-down instead of being left aligned. Is this a bug or by intent? (Update: Appears to have reverted to pre-2.90 behavior in v2.90a) - Thanks.
If you are editing Comments for example and the cursor is at the end of the Comments field, pressing Ctrl-S to save puts the cursor back at the first character of the text. Often I edit a comment and append an '' to force all tracks in an album to be written. i.e. Append '', Ctrl-S, Remove '', Ctrl-S. The workaround for this now is to insert '' at the front instead of appending to the end. (Still an issue in v2.90a).