I'm constantly changing the colors in the Edit palette so I can copy a custom color from one object to another. But I wish there was a button somewhere (in that window, or even in Preferences) that let me switch those back to the Defaults. (The image shows mine at the moment.)

(I see someone else proposed a "Color Palette Builder Box" for storing palettes, but that sounds a lot more complicated. I just want to get the Default one back!)