Software devs: what's the good GUI library or framework or language with excellent 2D support? I have multiple visual programming ideas, and I want to be able to build or prototype them quickly. Think: software for building diagrams or flowcharts, essentially.
Requirements:
* FOSS
* 2D graphics
* cross platform native desktop application
Nice to have:
* fast, efficient language
* web and/or mobile support
No, thanks:
* Electron
* React
