ISSUE: *in grid mode color is rendering only when a row is activated, does this bug or feature or potential improvement
I know this limitation, but in my case I have ~ 30 fields so is never opened in grid mode.
Anyway I think is a bug, so you can create a ticket
steps to reproduce
1. set any text field to color picker reference type
2. select color in picker
3. switch to grid mode - BUG => see color is not rendered instead hex code rendered.