If I display the fullscreen top bar by moving pointer to the top, it disappears when I move the pointer down back. Great. However, if I show the bar by moving the pointer to the left instead of to the top, it doesn't disappear when I move it back right. I think this is incorrect and very annoying. The "solution" I discovered is moving the pointer top and then moving it down, but even then the disappearance and/or shown becomes erratic sometimes. Please, make it disappear as it should when pointer is moved right from left border. I would also suggest to research the erratic behaviour (bar was shown and disappeared intermittently as pointer was moved around the screen) that I described as well.
I found it confusing that moving the mouse pointer to any border of the screen shows the toolbar that is always on top. So, if you want to use it, you have to move the pointer to the top which you could have done in the first place. If using the toolbar wasn't intended, you again have to move your mouse in order to hide it. So I decided to only show the toolbar when the pointer is moved to the top of the screen. https://git.xfce.org/apps/ristretto/commit/?id=442408f9a0f8b8af79c6bef34ffc5b8f12ec473f