Icons don't show on the toolbar after leaving full screen, in windowed mode. Toolbar is invisible but if I hover the mouse over it, button shapes are shown, and if I click them they work.

Show toolbar option is kept selected after leaving fullscreen. I think it's a redraw problem, as changing any option like language, forces a redraw of the window, and icons are shown again.

I'm attaching some screenshots showing the effect. In the second, the mouse cursor is not shown, but is placed over the first toolbar button, and so the border of the button is drawn (without icon).