Hi, I've tested this out on two different sites using the Revibe template, and on both sites upgrading the template from 2.2 to 2.3 reverted the color presets back to the pre-defined settings that come with the template (preset1 - pink, preset2 - teal, etc). I attempted to apply the customization from the Template Style > Presets tab, and I could not get the color customization to take affect, despite clearing site cache, server cache, broswer cache, and every other trick I could come up with. Preset1 always was pink.
I restored my sites to a backup taken before upgrading from Revibe 2.2 to 2.3, so I don't have a site to point to, but please let me know if you need anything else from me to look into this.
Thanks!