Remove Keynote Color Swatches
I am using Keynote 7.3.1
I have dragged various swatches into the little grid at the bottom of the color window, as you can see below.
I CANNOT for the life of me figure out how to remove those swatches. I have researched and watched videos, all telling me to either change them to white, or drag and drop a "blank" swatch to them. None of these solutions work.
Come on Apple, tell me you've thought through this. How do I remove all of these swatches??
MacBook Pro TouchBar and Touch ID, macOS High Sierra (10.13.2)