> I wonder how hard it'd be to create an extension that renders all alphanumeric chars in a font of your choosing, and all other characters in the font the webp

> I wonder how hard it'd be to create an extension that renders all alphanumeric chars in a font of your choosing, and all other characters in the font the webpage wants. I'm not too familiar with the details of the icon fonts, but my bet is that most of those characters are in the private use area. I guess it boils down to if an extension can hook into the font-resolution process, to have different resolution policies for different character ranges. I know there are extensions that can block web fonts, but maybe they just prevent the resource from loading at all.