I'm running Ubuntu 16.10, and every time I start up I get an app-indicator in systemtray that I don't know what is. It appears in guestsession as well.
It's the one right left of the wifi symbol:
When I pres it, it produces a kind of blank black menu with no text. I guess it's a leftover from a removed program, but I can't recall which. Any1 that can help?
gsettings set com.canonical.indicator.keyboard visible false
. If it is what you mean, I will make it an answer. – Jacob Vlijm Mar 26 '17 at 20:27