The engine version is 3.8.5, the spine version is 3.8.99. The polygon packaged atlas was used.
When it was played, the header was gone. 
In terms of color, I think this level of black is about right. I like to use darker colors, but the colors of some elements don’t go well together, making them look very dark and ugly.
The final solution is to come up with three color schemes (black, gray, and white).