When looking how to target multiple resolution, this official article Redirect to... title of new-page talks about Canvas Scaler. I tried to add that component to my canvas, but I couldn’t find it. Nevertheless, the documentations of this component is in the website: Unity - Manual: Canvas Scaler
How can I attach the canvas scaler to my canvas?
What version are you using? “Canvas Scaler” was only introduced in, I think, 4.6b21. In prior 4.6 betas it was called “Reference Resolution”.
To add it, simply select “Add Component” in the inspector pane with a canvas object selected, and then type the name into the search box at the top next to the magnifying glass (or, if you want to browse, I think it’s under “Layout”.
