When you submit a form the Gravity Forms default spinner appears. It is a gif, which doesn’t look great when used on anything but a white background, and isn’t retina-friendly. Let’s sort that out.
RocketGenius have documentation for the ajax spinner and from that I’ve created a filter:
The CSS above isn’t prefixed, so run it through autoprefixer or similar. You could also easily replace the blank loader gif with an SVG instead for endless customised spinners.