Thinking that instead of <file>__extensions for CSS, we should have a standard that any template may have a <file>__pre and <file>__post template to automatically prepend and append to it. This would be useful for quite a lot and would not add any load because it would happen only at compilation.

For CSS it would be good to have substitutions that have a CSS awareness. E.g.

{$CSS_REMOVE,.re_body,color}

To strip the 'color' property from the default '.re_body' class without needing to write regexps or do a full CSS file override.

We may want to make the diff page we have on our site also handle templates, and have filtering options to filter by file. Maybe multi-select lists of what files to include.
I suppose we could make it work with every single file in the distribution, why not.

Closing this. SOME of this was implemented a while back. Otherwise I am opening up new issues, splitting it all up for clarity.