I thought about difference in color of themes a while back when I created the first version of this theme, which lead me to a Character over background style. Again, the image can be found in google, while everything else is part of a rainmeter theme.
File Size: 165 KB
Color Theme: Blue, Grey, Yellow
Note: To install this theme, put the downloaded .ptf file in X:\PSP\THEME where X is your PSP memory card. If you do not have a THEME folder make a new folder and name it THEME and store the file in there. Afterward, disconnect your psp and on the psp menu screen, go to settings – theme settings – theme – (select the theme you want to apply). enjoy!