How to Change VTube VPort Color
How VTube Controls the Viewport Color
VTube-STEP, VTube-LASER Programmer, and VTube-LASER control the viewport color with an image file in the config folder called "bkimg.bmp".
The default image is a 256 x 256 bmp file that is shown on the right. This file has a blue gradient that changes the shade of blue from top to bottom.
Change the Color
You can change this background color by changing the color in this BMP file.