svgbob tips

• Syntax: https://ivanceras.github.io/content/Svgbob/Specification.html
• online editor: https://ivanceras.github.io/svgbob-editor/
• another editor: https://asciiflow.com/legacy/
• editor in perl + gtk: https://metacpan.org/dist/App-Asciio/view/lib/App/Asciio.pm