A nifty little script for extension developers by Ivo & Oscar Bouwmans:
Want to know what’s in an extension file? You can xar the file in Terminal, or you can drop the safariextz file on this Apple script, which does this for you. The file will be unpacked into a folder on your Desktop.
A bit hacky, and possibly confusing if you aren’t familiar with using Dropbox this way, but worth a look.
A hack to dim the Safari Reader background with a simple mouse gesture by reducing its transparency (hence making it darker).
(Optionally, this hack can also restyle the Reader by replacing Palatino with Georgia, adding a paper-texture to the page background and using Helvetica Neue for the headings.)
Safari Reader Mod by Jarques Pretorius
Not strictly speaking an extension, but looks too nice not to post.
