Need help urgently

I want to know that lf l make a scratch and win app and use canvas so what l have to do for make scratch card like google pay scratch card

Any Canvas blocks settings pls pls help me :pray::pray::pray::pray::pray::pray::pray::pray::pray::pray::pray:

Not for background when they drag finger like that canvas setting plss sir

Link plss video link

Video Link - Scratch Card App - Cherry Picker Mini Game [.aia file] - YouTube

He uses image sprite but l use canvas and when l drag canvs with finger it drags a very thick different from google pay cards plsss teach me plss plss canvas settings for that

Plss help plss plss plsss