3 1. The "base64" utility from GNU coreutils.
4 2. The "scour" SVG optimizer.
5 3. The "fontforge" program.
6 4. The "xsltproc" program from libxslt.
8 To run the test suite, you'll also need the "tidy-html5" program.
12 1. To remove a "transform" from a group (like the bus) that was
13 resized together, simply ungroup and regroup the whole thing.