GIF in CamOverlay App
The new version of CamOverlay App 1.5.x supports animated GIF images. Nevertheless, some GIFs available on the internet have broken format. To fix it we recommend transcoding your GIF via this tool.  Also during our testing, we found several high-resolution animated GIFs with a large number of frames that could cause the camera to reboot regularly due to excessive memory consumption. In such cases, use a different image or resize the GIF.
To play GIF image in loop without limitation, set zero as duration.