[ ] This problem predates TS but I thought I'd mention it while in the area. new options.contentAppearanceStrategy( looks odd. Can we use a factory pattern instead of constructor pattern? This pattern looks a little unusual to me (or maybe I'm just not used to it)
In https://github.com/phetsims/sun/issues/751, @samreid said:
That issue is not related to TypeScript conversion, so has been moved here.
Assigned to @jbphet (author) and @samreid to discuss.