[mod] lisibility
[mod] don't need to do that
[fix] decorator change, need to adapt
[mod] don't do side effect on import
[mod] I'm already doing this
[mod] more code for more lisibility
[mod] pep8
[mod] meh refactoring, not so cool, move responsability out of Command
[enh] global strategy to keep old events
[enh] enforce new color at each update
[mod] trailing spaces