This mod would work in a very simple way; the player would be able to modify the scale of all HUDs in the game, such as chests, inventory, hotbar, individually. In other words, they could change the scale of each one as they wish.
Example:
Chest Scale: Large
Inventory: Medium
Hotbar: Small
Along with this, there could be a bar to increase and decrease the scale, making it easier for the player to set their own definition, without being limited to the game's default scales.
The reason for adding this would be due to the additional ease and convenience in various minigames or even in survival mode. If the player wants to use the chest in a large scale, they need to change the game settings, but everything becomes bigger, including the chat (which, honestly, I think is what most interferes with gameplay when it is on a large scale) or the hotbar itself becomes huge.
It could be added as soon as possible, as it is another mod that can assist many players, simple and practical for everyone.
Thank you very much for reading this far, until the next suggestion.