When the Full screen text background is set to semi-transparent (the default) and an animated GIF or APNG image large enough to overlap where the text is drawn is viewed in Full screen, they will "fight" for priority. This causes the text to flicker and the frame rate to tank.
The performance hit is apparent even when the image isn't big enough to overlap the text, which suggests the same thing is happening, it just isn't as obvious.
The performance hit is apparent even when the image isn't big enough to overlap the text, which suggests the same thing is happening, it just isn't as obvious.
