I'm making a Speed Dial extension for Opera 15+ (the Webkit-based ones) and I want to embed a custom font.
Now, I'm quite used to embed fonts using Google Fonts, but as far as documentation says this is not possible because of security concerns. Then, I think I need to load fonts locally using @font-face, but I don't know which formats Opera 15+ (or Webkit, by default) accepts and how to actually embed it in my CSS.
Is there a way to find out what kind of font embedding I can use? Are Speed Dial extensions not allowed to have custom fonts? Can I use Google Fonts directly? Those are my questions.