Thank you for your suggestions!
I was also planning to add a way to do something like a zoom-out.
I understand that there is not much to do as of now, I’ll try to add some more interesting things that reward you for exploring more.
For what concerns the numbers, there is an option in the accessibility settings to change their color or make them more visible. Maybe the default value for the transparency should be higher?
I was debating whether I wanted to add the ability to save. I understand it would be very convenient if you want to play for longer, but eventually I want to add an integration with the Steam leaderboard and I don’t want players to be able to reload previous saves and get an infinite score on the leaderboard. One solution would be to delete the save file when it is reloaded, but it wouldn’t prevent people from saving a copy of it somewhere else, otherwise I could stop counting the score if you reloaded a save file, but it would be kinda disappointing to not be able to save your score.