Is there any way to highlight some text for which I've chosen a color in the past and be able to determine the color code chosen so that I can duplicate it exactly without guessing? When I click on Text Color and then on Advanced, it never fills in the colors codes I've chosen so I can (somehow) use those codes on some new text. I'm sure I can probably hunt through the HTML and hand code the colors I need, but I was trying to avoid that.

Unfortunately, for some reason the editor does not default select the color of the text that is currently selected to show you the color of your text... that would be nice. Right now the only way is to choose a color that looks close and test to see if that was the one. Or, as you say, to hunt through the source code. Sorry I couldn't give you an easier answer for this one.