Toolbar Icon Improvements

[JTarasovic]

On OSX with the dark toolbar, the toolbar icon looks like this: .

I think the answer is to use Template Images. I tried just appending template to the pngs in /lib/assets/* as well as within app-tray.js. It worked but the icon is probably too large with a HiDPI monitor and the inverted play and paused were weird.

I'm getting ready to move to a different country but I can try to mess with it a bit this weekend if I get a couple of hours.

[JTarasovic]

Also, at least on the El Capitan preview, it just calls itself Electron and uses the standard dock image.

[twolfson]

Oh weird, I had no idea OS X had a dark toolbar. I am open to both template images (had no idea that was a thing) and generating a set of images with white headphones.

With respect to the dock image, that is something that is known (at least on Linux it is the default window icon) but the process text typically changes to the song being played. In any case, I am open to supporting this as well.

[akszydelko]

I have the same problem with too big image, but I don't have a dark theme so it's easier to see the problem: