I just used my hard-earned Unicoins to purchase the Colorful Comments power, and it's great. I only find one thing lacking; the colour can't be changed! Eeeeek! After seeing the wide and varied range of colours listed in the Top Bar Color Chooser, I had expected there would be a similar range of options for the comments.
This must be fixed! Please add a similar range of options to the Colorful Comments power.