Hi, I'm happy to announce that I finished working on the Issue 1551 [1], to finally remove the redundant TranslucentColor class from the Pharo. You can to read more about it here: http://fernandoolivero.wordpress.com/2013/09/08/begone-translucentcolor/. Stay tuned, more cleanups are on the way. Fernando pd: Have a nice ESUG @ beautiful Annecy! [1] https://pharo.fogbugz.com/f/cases/11519/Merge-Color-and-Translucent-Color