* Rm gradient buttons from Storybook * TEMP move storybook button section * Remove gradient_sky * Remove actual defs for gradient_sky and gradient_primary * Remove other gradient defs * Remove gradient support entirely * Deprecate 'variant' in favor of 'color' * Fork base styles codepath to make variant deprecation more obvious * Remove text styles for when no color is set, never been used * Fork text styles codepath to make variant deprecation more obvious * Revert temp storybook commit, remove deprecated values * Replace remaining gradient button usage