I choosed the 3D floor if you choose a 3D floor you need to set 2 different colors. The player can navigate to the symbol in the Colour trigger thereby opening the Special Colour Select to acquire the ability to change a special colour. Thank you we were wondering how theyd changed the ability to do that. And from there just select the color you want and the fade time how long it takes the old BG color to fade into the new one and youre done.
Down at the bottom there is a text box labeled Color ID. Make two background-color-changing blocks the block that says BG in the rightmost tab. These portals change up the gameplay in a variety of ways. Click the button under the background button that says G.