Hi Balan,

The problem is caused by browser cache,

After change the theme option value, please go to front-end and press "ctrl+F5".

Then, browser cache will be clear and you can see the changed result.

If you have the other questions, please let us know again.

Best Regards, C-Themes

I installed your theme on my website and your core plugin isn't working properly. I modified colors to yellow, and they are still red on my website. What's the problem?