Consequences of going Pro then removing it

I am thinking of going Pro for the custom character sheets and for the dynamic lighting, but I wanted to check first, that if I go pro, decide it isn't worth it and drop pro, I'll still be able to access and modify values n the customized character sheets (though presumably not modify the logic behind them) and use my maps that had had dynamic lighting turned on. Similarly, will API scripts that I wrote as Pro still work if I unsubscribe? If not, will they break the scenes they're used in or just be disabled

I believe  that you'll continue being able to use your custom sheet, but you won't be able to modify it. Dynamic lighting will not function, but if you ever re-subscribe your DL walls will still be there for you. API scripts will not function, but they won't break anything. If you ever re-subscribe your scripts will still be there for you.