Cainyx is a gray skin for Masque (formerly ButtonFacade) that will add button style to the supported action bars. This skin is based on Caith and Onyx Redux.
6.0 note: Raven highlights effect does not work now and i dont know why... sorry about that, maybe i'll fix it later. Btw, you can try to use "Raven highlights" sub-skin if you need a light-gray skin frame for buttons Also i added a special skin for highlights from Raven addon:
To activate the Raven highlights for Masque change settings: Raven options > Highlights tab > select top "use ButtonFacade".
For example, in Masque settings you can choose Cainyx skin for all panels. And separately for Bartender4 - "Cainyx - Raven Highlights".
If exist, remove the old skin - "World of Warcraft\Interface\AddOns\ButtonFacade_Cainyx"!
Download the package.
Extract the package to your "World of Warcraft\Interface\AddOns" directory.