There is a mixture of tabs and spaces in the source, we only uses spaces. Check https://github.com/steinwurf/steinwurf-labs/blob/master/docs/coding_style.rst#indentation maybe you can add there (to the coding_style doc) how to setup that in VS.

Also I don't know if it is possible but we also always remove trailing white spaces. I think you can also do that (http://stackoverflow.com/questions/82971/, http://stackoverflow.com/questions/12122846/)