[BUG] Default color in Dark color theme

[orcinus]

Not sure if this was mentioned before, sorry if it was...

The default color remains black in some places, even when the theme is set to Dark, leading to minor annoyances. Notable example: try editing the name of a column in the Spreadsheet while using Dark theme. After renaming, the column header content will revert to black(-on-black) and you'll have to format it back to white yourself.