I'm trying to change the style css for the button - I want to make buttons of higher resolution and different colours.
I can use custom.css to put my own images in base64 instead of the ones in the 854b4eb.css on your site but I have to use !important to overwrite each one (and because of that it doesn't work properly).

is there any way to host the 854b4eb.css on my own site instead ?