Synth panel designer

This looks useful, and its free too.

Rolling your own synthesizer panels is getting easier.

Synthpanel designer (SPD)
https://synthpanels.design/

User manual
https://docs.google.com/document/d/1KR6M1_s8He04fjyAf2Q0zOZF6PMyT0YhIDNOI8MRJcQ/edit


You will need inkscape to run synthpanel designer

 SPD is an extension for the INKSCAPE 1.0 open source vector graphics software for MacOS, Linux and Windows.

Inkscape download
https://inkscape.org/release/inkscape-1.0/windows/64-bit/exe/dl/


Open Inkscape.
Put the following files here
Preferences > System: User extensions

. After a restart of Inkscape, the new extension will be available under the menu EXTENSIONS -> RENDER -> Synth Panels Designer.

Inkscape is a vector graphics program.
Looks very useful to learn this software.