Change Modpack-Mode in a GUI?
(an addon for PackMode)

Why every modpack with modes should use this addon?
That is quite simple. This addon enables players to change the mode while the game is open and getting visual response.

You as a modpack creator don't have to explain the players anymore how they can change the pack-mode. You just simply say that they have to go into Options and then click on Pack-Mode.

That's just it.

The modes will be fetched from the packmode.cfg. So no hardcoded modes!

I know you want screenshots. Well it's your lucky day. I have some for you.