Adwaita: add style for identifiers
Currently, there is none. Some languages map some of their style to def:identifier which are not highlighted by Adwaita.
This adds highlighting for identifiers with the unused chameleon_3 color.
Currently, there is none. Some languages map some of their style to def:identifier which are not highlighted by Adwaita.
This adds highlighting for identifiers with the unused chameleon_3 color.