It would be nice if GitHub published a list of shortcut keys for their desktop apps but since they don't, here's what works as of 2017-04-24.
`
- (backtick) open shell (aliasctrl
+shift
+~
for when you are in a text field)a
- add repob
- branchesn
- new brancht
- toolsalt
+s
- sync branchctrl
+tab
- switch between changes and historyF5
- refresh all git data
Help wanted. If you have discovered new information about shortcut keys for GitHub desktop, please fork, change, and submit a pull request.