Making a binocular-like scope gui

Help and Feedback Art Design Support
#1
  1. What do you want to achieve? Keep it simple and clear!
    I am trying to create a screen that is black but has a circular opening like how videogames would be when you are aiming with a sniper rifle
  2. What is the issue? Include screenshots / videos if possible!
    The issue is that the image label won’t be able to fit the screen of every device fully.
  3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
    I have tried to use an image label as the gui, but as indicated above, it didn’t work.
#2

They don’t fit every device screen fully like how? Like the default topbar? Have you tried increasing the size of the border of the gui?

#3

Sorry for the delayed response was a little busy. When I say fit the screen fully, I don’t mean like a topbar just the whole screen. I tried to increase the border size and I used Auto scale to maintain an aspect ratio but it doesn’t fit every screen and that is because different screens have different aspect ratios. I need a way around this.

#4

Does that has something to do with the part of the aim? Because if you use the scale size it should fit with no problems, I can’t think of anything else