richk67 wrote:Note: This is not a company colour, so dont say "use colour remapping", because its not relevant.
Oh yes it is. Perform any one of step 1?, and step 2. 1c is probably the least appropriate solution, but it's still quite possible.
Step 1a: Manually recolor the green signs to use the "company color" blues (which would more properly called "remappable blues")
Step 1b: As 1a, but use the remappable greens instead (aka "Patch company 2")
Step 1c: Generate the 16 recolor maps that will recolor the sprites appropriately.[0]
Step 2: Instruct the game to draw sprites using the correct color translation sprite. Translation sprite selection can proceed completely independent of company color, as evidenced by:
1) un-owned things (especially houses and industries) use recolor maps even in TTD (possibly TTO too)
2) NFO provides for per-object, if not per-sprite, color-map selection for many owned and un-owned objects, including vehicles, stations, houses, and industries.
[0] Color maps are not hard to generate; they're just a 0 byte followed by a 256-byte translation table. The only potential issue is the mismatch between the DOS and Win palettes, which might necessitate 32 maps instead of just 16. I don't remember where it is (or was), but patchman will probably show you the perl script he used to generate the 512 2CC color maps if you ask.