For those who find that typing out alot of gamerules is just way to tedious.
This mod simply adds in a GUI that will allow you to toggle any of the vanilla gamerules, and on page 2 you can do the Numeric gamerules. It will display a message in the chat to let you know, also the button will change to what the value is equal to (for the true/false values)
Side note: I'm submitting this to MOTW not because I think it deserves a spot, but because this is a mod of convenience, and would probably get lost in the sea of mods. I just think alot of people will love to use this vs typing out gamerules, especially devs who need to work quickly.