Hi, I'm looking for the (python?) source code of the "Inset/Outset Halo" extension under "Extensions/Generate from Path" menu.
I looked in the share/extensions folder, but I didn't find any .inx file defining such extension.
Actually, I also executed a content file search in all the Inkscape folder for the extension name, with no results.

Any idea where I can find it?

glasnhost wrote:I'm looking for the (python?) source code of the "Inset/Outset Halo" extension
(…) Any idea where I can find it?

This extension is not implemented as a script extension (python or other interpreter), it s an internal extension coded in C++:

• src/extension/internal/bluredge.cpp
• src/extension/internal/bluredge.h

To edit it and use the modified version, you have to rebuild Inkscape from the sources, which could be difficult, depending on your platform…