Hovering cursor over the show playlist blinks with menu GUI

Submitted by MichaelN

Assigned to Simon Steinbeiß @ochosi

Link to original bug (#12139)

Description

OS: Debian 8 (32 bit) GUI: LXDE Parole version: 0.8.0

When hovering with the cursor between the 3 bottom right corner buttons: Volume, Full Screen, Show Playlist. i.e. hovering with the cursor between the buttons, in order to change description box showing the button name.

Instead of just seeing the button description (e.g. "Show Playlist"). There is blinking of the "description box" showing for few ms the image of the upper left corner of the GUI of the menu (e.g. "Media").

This reproduction requires moving the cursor back and forth on the border between two buttons and waiting for the description box to be shown.

Version: 0.8.0