After looking through many of these files I noticed that number was always within a certain range and using cheat engine a lot I just kinda had a hunch that these were just decimal values but usually turning them to hex would look like FFFFFF or FFFFFFFF
So after a few more examples I concluded these are color values that sometimes have alpha values too
"Mask":
4294967295 -> FFFFFFFF

16777215 -> FFFFFF (no alpha)

Some examples of where there are actual colors:
Cavs Home Font Color .txtr

Atl Secondary Font Color .txtr

Memphis Away Font Color .txtr

I don't know how much of an impact this value makes and not really sure how to use it or when to use it but I thought this information would be helpful.
The Min and Max values seen above do matter a lot however. But these are also just color values sometimes with alpha values.
With these the colors are (R, G, B, A) and the 0.0 to 1.0 means 0 to 255 just like a hex value of 00 to FF
you don't have to stop at 1.0 though since putting them at 4.0 for example can make the led lights on the shot clock or backboard really bright however this doesn't often look great but you can try it