We have many images in various parts of the tree which are generated (e.g. from SVGs). These should not be checked in, but should rather be built as part of the build process. Otherwise, we might forget to update them, or fail to notice problems generating them.
It looks like librsvg needs an update as well, as it doesn't seem to handle all constructs properly.
(In reply to Pierre Ossman from comment #1)
> It looks like librsvg needs an update as well, as it doesn't seem to handle
> all constructs properly.