Google Music , Google play logo , a project ready from a DMCA takedown ... dont be stupid, remove all the google trademark stuff or your project wont live long in github.
Nothing physical can be trademarked. It's the idea of some features in a particular field that forms a trademark (in this case, the right-pointing triangle, the phrase "Google Play" in the 'app store' field) you break a trademark as soon as 'the typical consumer' might be confused who he is talking to.
So, the particular logo likely is copyrighted, and the idea behind it trademarked. If you redraw the logo (using some artistic expression; a 1:1 copy won't do), you are free from copyright claims, but may still be breaking trademark law.
But this person might land a job at Google, like the Sparrow folks... http://sparrowmailapp.com/
That's not an insult, it's supremely awesome that this is even possible and that this dev made it happen. I'm using it now. But there are a few of these types of things for Google Music, there's a similar Chromebook app.