by mikesimpson » Mon Nov 28, 2016 5:29 pm
The folder Assets\Kuju\RailSimulator\scenery\Procedural is not in an .ap file, so there should be nothing to unpack there. At least if you have the original Kuju files from an early version of TrainSimulator.
The Grass bank has 3 files, Grass_Bank.bin, Grass_Bank.geopcdx and Grass_Bank.xsec all 3 of these can be opened in RW_Tools, suggest you just copy each file and rename the copies Grass_Bank2.bin etc and internally rename Grass_Bank.bin under <DisplayName> to Grass Bank2 Loft and under <CrossSectionID change the entry to Grass_Bank2
In both the .geopcdx and .xsec files change the entry
<Texture>
<e d:type="cDeltaString">textures\[08]grass_bank</e>
to read grass_bank2
Now you can go into the Assets\Kuju\RailSimulator\scenery\Procedural\Textures folder and reskin the Grass_bank.tgpcdx and the grass_bank_wi.tgpcdx textures to whatever colours you like and save them as Grass_bank2.tgpcdx and grass_bank2_wi.tgpcdx and you should now have a new color scheme. For extras, do the same again but use 3 instead of 2 in the edits.
That should work.
Mike