I'm currently developing some visualizers with treeviews, using WPF and C#.
Some debugging visualizers for Visual Studio, for:
Typescript definition generator from COM type libraries, and from the LibreOffice Automation API
Typescript COM definitions, for:
YearlingMar 1, 2022
BenefactorJun 2, 2021
PromoterMay 26, 2021
Self-LearnerJun 14, 2021