gzdoom/wadsrc/static/actors/chex/chexkeys.txt

// These are merely renames of the Doom cards

actor ChexBlueCard : BlueCard
{
	inventory.pickupmessage "$GOTCBLUEKEY"
}

actor ChexYellowCard : YellowCard
{
	inventory.pickupmessage "$GOTCYELLOWKEY"
}

actor ChexRedCard : RedCard
{
	inventory.pickupmessage "$GOTCREDKEY"
}