They are used solely in the test. And the test does the SCSS compilation and compares the results to expected files. So changing anything in the test source SCSS and we need to change the expected results too ! This isn"t necessary...
But there were some confusions as the css/light-grey.scss file is modified very often, and one of the test source file has the same name !
Adding the prefix DO_NOT_CHANGE should avoid such errors in the future O:)
- $version does not exit anymore in css-variables.css. now its value is computed during setup and equals setup timestamp instead.
- use precompiled files (declared in datamodels XML files) to check if theme compilation is required or not.
- referenced images in scss files are included in precompiled file signatures just like scss files md5sum.
- images declared in scss files with v=$version are reloaded automatically on browser side after each theme compilation (see xxx.png?v=timestamp)
- precompiled files are replaced if theme compilation occurred. this will avoid same time consuming operation at next setup.
- code cleanup: arrays / variables renamed
