As you can see, subpixel antialiasing is working fine on the menu bar, but it is not working anywhere within the atom editor. I tried renaming .atom, running with --safe and a fresh install. Nothing works.
This device is a Surface Pro 3 so it has high DPI enabled, that might be a reason. Cleartype is enabled (as you could see in the menu bar).
It’s really not a big problem, but for some reason it’s been driving me crazy! Any help would be greatly appreciated.