I created a rule that applies a mint green color to a lot of emails in my mailbox. I no longer want that color on those emails and I do not see a way to remove this highlighting for even a single email. I know I could create a new rule to give them a different color, but there is no rule semantics for removing color either.
It seems that all of my email's subjects in Mac Mailbox are now permanently stained.
Looks like you can do it by adding a new Rule [I haven't tested it, because I don't want to actually reset my own colours…]
Try setting Any condition > Every Message > Set Colour…
Note: the 'Other colour seems to depend on your current Colour choice in the Colours floater - Format > Show Colours…
You can do it manually, select one message, pick a colour - but it seems very hit & miss, sometimes works, sometimes doesn't.
You can add a colors button to your toolbar. Right-click the top toolbar, click customize, then drag the colors button to your toolbar. Then you can select the messages and change the color.
My experience has been that rebuilding your mailbox will get rid of all coloring. However, this process will cause Mail to re-download all emails in that mailbox, which depending on the size of the mailbox may take a very long time and use up a lot of bandwidth.
If you’re on a metered connection, that could be a problem.
I know this is an old thread, but I discovered a good solution to this without 3rd party apps, scripts, work-arounds.
Since google brought me to a different question for this, my full write-up is there: https://apple.stackexchange.com/a/461044/498532
I wanted to make sure to reply here to avoid the annoying situation when google results show a page where the question is just marked as "duplicate" by the community and nobody posts a link to the duplicate or a solution.
I figured out a way to do this without using special apps/scripts, complicated work-arounds or hacks; this solution will actually "put it back to the way it was." It was just a matter of figuring out the right colors to choose that will maintain UI consistency when switching themes.
To set message text and background to restore the default "non-colors", you want to use the Color Palette selector, and choose "Developer" in the dropdown. You'll see a list with colors named for their UI purpose.
The color to choose to restore original Text color is:
disabledControlTextColor
The color to choose to restore original Text Background is:
alternatingContentBackgroundColor
Again, these are theme compatible and will change appropriately with the OS theme setting.
