View source for Pmd2 BGP

[[Category:Incomplete Articles]]
[[Category:ROM Hacking]]
[[Category:Technical References]]

The BGP file format is used in Pokémon Mystery Dungeon: Explorers of Time/Darkness/Sky to store full-screen background images, most notably the various images that appear in the background of the main menu.

It is stored using AT4PX compression.

== Overview ==
{| class="wikitable"
| Offset
| Length
| Name
| Description
|-
| 0x0
| 20
| Header
| Currently unresearched
|-
| 0x20
| 1024
| Palette
| Stores 64 colors for use by the tiles.
|-
| 0x420
| 620
| Tile Mapping
| For each 8x8 region of the screen, identifies which tile, palette, and transform to use.
|-
| 0xC40
| Unknown/Varies
| Tiles
| Consecutive 8x8 4bbp tiles for use in the tile mapping.
|}

== Palette ==
The palette consists of 1024 bytes, representing 256 colors.  Each color has 4 bytes: Red, Green, Blue, and a 4th unknown byte which is always set to 0x80.