| OpenTTD
    | 
| Data Fields | |
| uint32 | offset | 
| offset of bitmap data from .bmp file begining | |
| uint32 | width | 
| bitmap width | |
| uint32 | height | 
| bitmap height | |
| bool | os2_bmp | 
| true if OS/2 1.x or windows 2.x bitmap | |
| uint16 | bpp | 
| bits per pixel | |
| uint32 | compression | 
| compression method (0 = none, 1 = 8-bit RLE, 2 = 4-bit RLE) | |
| uint32 | palette_size | 
| number of colours in palette | |
 1.8.1.2
 1.8.1.2