stretch screen for different resolutions

basically when I change my game resolution when built, I get weird flickering border depending on the aspect ratio, but I would like the game to stretch to fill the entire screen, isn’t there an option or simple way to do this; kind of baffles me there’s isn’t when every game uses this, thanks.

Screen.fullScreen = true;

when you go to build your game there is a “player settings” button towards the bottom left of the screen. that brings up a bunch of options to the right. there are a bunch of settings there to play with if you haven’t found them already.