Mirror symmetry in Lattice 2 live effect for Inkscape

My last is two toogles to allow symmetry in lattice 2 live effect.
Now in development version

Objects to and from String Extension for Inkscape

With this two extensions, you can edit or get the code of a single element with a text editor, without the need to open full svg -if exist- code, you also can run it trought command line.
You can download from here https://inkscape.org/en/gallery/item/4901/
Here a video on action:

New feature Interactive Smooth Pencil for Inkscape

I just finish my last branch to make smooth path interactivity way with pencil tool in Inkscape. Here are the video:
You also can select other paths than last to smooth. not in video.
Here are the code https://code.launchpad.net/~inkscape.dev/inkscape/simplify-lpe-pencil-toolbar

Artist: Dale Herr (ASCAP) 100%.
Song: Aa Bottom-WCPM.