They are named gnollhack_64x96_transparent_32bits.png and gnollhack_64x96_transparent_32bits-2.png.
The game will be messed up, but don't worry about it.
They need to be placed to win\win32.
1.4 Rebuild GnollHack Solution
Change Solution Platform to Android + Windows.
Start Windows Subsystem for Linux.
Start the SSH Service in WSL.
Rebuild Solution.
1.5 Start Debugging GnollHackW and Save tile_definition.csv
Start Debugging GnollHackW in Visual Studio
Start a game.
Type #wizsavetiledata to create a tile data file.
tile_definition.csv will appear in the game directory bin\Debug\x64.
2. Create Tileset
2.1. Copy tile_definition.csv to GnollHackTileSet repository
Copy tile_definition.csv to the root of the GnollHackTileSet repository.
2.2 Run TilesetCompiler
Run TileSetCompiler using the right Launch Configuration (it needs to point to the GnollHackTileSet repository location).
This will create gnollhack_64x96_transparent_32bits.png and gnollhack_64x96_transparent_32bits-2.png to the root of the GnollHackTileSet repository.
2.3 Copy Tileset Files to GnollHack repository
Copy gnollhack_64x96_transparent_32bits.png and gnollhack_64x96_transparent_32bits-2.png from the root of the GnollHackTileSet repository to win\win32 in the GnollHack solution repository.
3. Rebuild GnollHack Solution
Using Android + Windows solution platform, rebuild the GnollHack solution.
This will copy necessary files to the GnollHackM project.
4. Rebuild GnollHackM Solution
Using Visual Studio 2022 Preview, rebuild the GnollHackM solution.