Actually, only ".csslintrc" is supported. However, ".csslintrc" is actually a json-object. So please also provide ".csslintrc.json". Then I have syntax highlighting/formatting/commenting with IDE which is actually not supportet with the fileformat of ".csslintrc".
I see your dilemma. In the meantime, you could try this workaround. using Brackets open the '.csslintrc' file then at very bottom right info bar select the file type to 'CSS'. May work similar in other editors
Actually, only ".csslintrc" is supported. However, ".csslintrc" is actually a json-object. So please also provide ".csslintrc.json". Then I have syntax highlighting/formatting/commenting with IDE which is actually not supportet with the fileformat of ".csslintrc".