Add item to control fog

[zooz8882]

I think adding an item that allows the mapper to control the fog in the level would be cool! I'm not sure how possible it is or how it would work. You could change the color of the fog with the cube colorizer color picker in the style properties box. Then select the color in the editor with the cube type properties. I'm not sure if this would work but you could also try and make it so you can change the thickness/density of the fog with the button type. I'm not sure. Those are just my ideas!