All images must come from Heroes Data Parser using the following command.
'Path/To/Game' --extract-data all --extract-images all
Or the following command if data and gamestrings are being extracted as well for Heroes Data
'Path/To/Game' --extract-data all --extract-images all --localization all --localized-text
The .hdp.json is required with the pull request with the following format
{
"hdp": "x.x.x",
}
x.x.x is the hdp version that was used.