Suggestion: consider emojis for the icons

[jon-heard]

I don't now if emojis work in Android, but they are fairly ubiquitous these days (even Windows Notepad lets you paste them in) so they probably work in Android too. They are easy to use (treated as normal characters by many applications), there are a ton of them (I've only ever used small subsets in my projects), they are distinct and fun to look at, and they are free.

I mention this mostly because, while the icon selection you have is ok for its purpose, it can occasionally feel limited, particularly when adding a more esoteric command for the sake of a particular game.