# greenwich The `greenwich` theme-extension is bundled into `civicrm-core`. ## Development This extension includes compiled (S)CSS content. It is compiled automatically via `composer`. Compiled files should *not* be committed to git. They will be generated during `composer install`. These commands will help during development: ```bash cd /path/to/my/composer/root ## Compile (S)CSS - one time composer compile ## Compile (S)CSS - and continue watching for changes composer compile:watch ```