Colorful and Shadows is an add-on that lets you change and enhance the lighting in Monster Hunter: Rise. You can change the lighting, which is useful for mobs and items that are at a certain distance from you.

To install this addon, you need to first download and install GShade/reshade. You can download these things from the website. It is a simple tool that works on Windows.

Once you have both of these things, you can drop the .ini file into your game folder. It should be in the folder that you have chosen to allow downloading of mods.