I’m a staunch Coda 2 user, but I also like to write CSS in Less (and occasionally SASS), with LiveReload compiling the CSS file for me. The problem here is that Coda doesn’t detect the new file, so doesn’t automatically mark it for publishing. It would be nice to just hit ‘Publish All’ and be done with it.
Simple workaround: Right-click your CSS file choose “Open with…” and then “Coda 2.app”. From now on, Coda will detect the compiled CSS and mark it for publishing. Huzzah!