Themed (application) icons

I have a significant preference for monochromatic icons. With the recent improvements to how monochromatic icons are identified (I can’t cite this, but @ngraham wrote the article) and the removal of manual iconography scaling by the user with [Approved] Plasma 6 proposal: remove the ability to configure icon sizes systemwide in the icons KCM (#58) · Issues · Plasma / Plasma Desktop · GitLab, I believe that an implementation of accent colour themed (vectoral) iconography would be a significant improvement. I would expect such a feature to operate as Features and APIs Overview  |  Android Developers explains Ícones adaptativos  |  Desenvolvedores Android  |  Android Developers do.