In detail view:
Navigate between submissions:
Left ← arrow key to go back
Right → arrow key to move to next submission.
Press space to go one level deeper (e.g. from author to 1st project of author to 1st image of project).
Press esc to go one level up
Video of navigation via keyboard shortcuts
Apply votes:
For Five-star rating use the keys [1,2,3,4,5]
For Simple voting press v
0 to remove the gradual vote again