Is the Ultimate Cool theme the theme you made the color scheme changes or do you want to use a second theme in parallel to the Cool theme and you made the changes in this other plugin?
If you want to use a second theme in parallel to the Cool theme, this might explain why it does not work: the Cool theme simply overrides the css settings of the other theme.
If the Cool theme is the only theme and you changed the color scheme there, you might want to try to flush your browser cache. Maybe the Cool theme fiddles with some cache expire settings. If this does not help either, you may simply have missed some color setting to be adjusted.
i am using ultimate cool theme and changing the color scheme in it. The problem was a simple case of having 3 different codes in the layout.php doing the same thing, i removed the arbitrary code and my color scheme started working. basically it's a case of poor css styling. to get my color scheme to work I had to to remeove unecessary css coding.
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