Requires Forge
Client-side mod
Note: Mod is totally resigned for 1.20.1.
Instead of integrating with the video screen, the scaling is now only configurable with a hotkey (default: F7, change in Key Bindings menu).
This is so that it can work even with custom video screen UIs such as Iris/Oculus.
This mod will change your Video Settings "GUI Scale" option into a slider that allows for a wider range of configurations.
Other mods exist with this functionality but this mod is compatible with both vanilla and optifine. This mod also allows a much more fine-grained tuning than others which only give integer values like 0, 1, 2, 3, whereas this offers any value you want like 1.7x for example.
In vanilla the scaling options are [1, 2, 3] but with this mod you can choose between 150% to 450% using a slider.
The vanilla scaling options correspond to the following percentages:
1: 200%
2: 300%
3: 400%