On my Macbook Pro (OS X El Capitan) I was having issues on Electron based apps. These apps had visual issues/glitches like blank screens, visual components showing only when hovering or transparent menus.
By opening with these comands, the problems disappeared.
open /Applications/Slack.app/ --args --disable-gpu
open /Applications/Trello.app/ --args --disable-gpu
open /Applications/Whatsapp.app/ --args --disable-gpu
Terrific, Let me add 2 apps more.
atom --disable-gpu
open /Applications/Google\ Chrome.app/ --args --disable-gpu