Board Thread:General Discussion/@comment-26567684-20200409221930/@comment-168424-20200409232531

See Help:Avatars and pay particular attention to the Notes section:
 * Your image must be a JPEG, PNG, or GIF, and it must be less than 500kb in size. It's best that the image is 150x150 pixels or larger. GIF image files (and animated PNGs) do not animate.
 * Of course, 500kb is pretty small. Most phone cameras by default take images that are much, much larger. If you want to use an image you've taken on your phone, you'll likely have to run it through an image editor or a compressor to lower its size.