Why you should include Alva: Alva is an OpenSource Gui / Website designer based on Electron with a modern minimalistic GUI. It could replace Adobe XD for those being new to Solus. The Repository doesn't include many options for graphic / Gui design on Solus. The project gets updated often and the developers respect the community and fix bugs reported by the users.
Open Source? Yes it is.
Source (.tar.gz): https://github.com/meetalva/alva/archive/v0.8.0.tar.gz