@skykooler Yes, that's the issue I meant with respect to transparent areas in animations. As for a quick fix: Would it be possible to surround the images with some kind of frame such that there are no transparent areas in the animation? I tried to find a better solution ever since I am aware of this issue. Though, unfortunately I didn't find a satisfying solution yet. I had one approach that used a rectangle on a cairo context to "overdraw" the last animation frame with "transparency" (basically erase a rectangular area in which the animation happens) prior to drawing the next animation frame. Though, this approach caused the animation to flicker. Maybe someone with more expertise in (py)gtk pixbuf and drawable/drawing area has a better idea?