When I loaded ED's Color Toolbar v2.5 (using OS X 10.6.8, Reaper 4.12, SWS v2.1.0) the included colors were all wrong, starting with blue instead of red. See the row of colored squares in the bottom right of this image:
I went through all the colors and noticed that their RGB colors were all transposed. For example, the first color should have been red. In the stock
Since the swatches match the toolbar icon colors, I'm going to use this. Feel free to use it as well!