The parameter background_color is invalid

[cici19850]

Hello, recently I have been using gsplat for training, but the parameter -- pipeline.model.background_color has not taken effect. Regardless of my default parameter, setting it to black, or setting it to white, the final training result shows that the areas that were not captured are all black. However, I would like to set the areas that were not captured to white. Is there any way to solve this problem