Ommpfritt is a free and open source semantic, procedural, non-destructive vector modelling software for Linux,Windows and MacOS. Using this you can create and edit animated graphics, echnical drawings, diagrams and icons. It is released under open source GNU General Public License v3.0 License. You can save scenes in json format. It comes with Object, Tag, Style, Tool support. Using the internal python interpreter, you can change every property. Some other important features are dart theme support, multi-selection support, key binding, Keyframe Animation, Timeline and Dope Sheet support.