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Backdrop Color
From SnesLab
A Backdrop Color is one that appears behind all other layers. The SNES has two backdrop colors: one for the Main Screen and one for the Sub Screen.
The main screen's backdrop color is known as color 0 and is the very first entry of CGRAM.
The sub screen's backdrop color is known as the fixed color and is set via the 8-bit COLDATA port (2132h).[1][2]
See Also
| Other Layers | ||||||
|---|---|---|---|---|---|---|
| Backdrop Color | Layer 4 | Layer 3 | Layer 2 | Layer 1 | Sprite | BG3 High Prio |
References
- https://problemkaputt.de/fullsnes.htm#snesppucolormath
- page 2-27-18 of Book I of the official Super Nintendo development manual