Whether PNG or SVG, images should be square (equal width and height).
For PNG, we recommend 400 by 400 px. Badgr will attempt to resize your image to 400x400 if you upload a PNG larger in either dimension. For SVG, please ensure the image has a defined viewbox that is square.
Badges are sometimes displayed at a small size. Preview your image at around 90x90 device pixels to ensure that elements are not too unclear. This is around the smallest size that applications commonly embed badge images on the web.