So I'm rendering stuff in the following order:
1. Background image
2. Background fluid color, opaque
3. Sprites etc
4. Foreground fluid color, transparent
So where there's fluid, you should not see the background image, right
SO WHY DO I SEE A BACKGROUND IMAGE
Worse, if I remove the call to draw the foreground fluid, OR make the foreground fluid transparent, IT BEHAVES AS I EXPECT AND THE BACKGROUND IMAGE GOES AWAY
What the actual fuck
