browser.jar:
% content branding %content/branding/
  content/branding/about.png                     (about.png)
  content/branding/aboutCredits.png              (aboutCredits.png)
  content/branding/aboutFooter.png               (aboutFooter.png)
  content/branding/icon48.png                    (icon48.png)
  content/branding/icon64.png                    (icon64.png)