hole cards are displayed from cards0.png
board cards come from cards3.png (700x420).
The file needs to be the proper dimensions, and the preferences.ini can not edit the cards 3 portion of the code, if you want that HH replayer to work.
Code:
[0.Win.Cards]
190, "Graphics\Table\Elements\Cards6"
150, "Graphics\Table\Elements\Cards6"
130, "Graphics\Table\Elements\Cards5"
105, "Graphics\Table\Elements\Cards3"
92, "Graphics\Table\Elements\Cards3"
75, "Graphics\Table\Elements\Cards2"
68, "Graphics\Table\Elements\Cards1"
Have you used HM's HUD and HH review? It's kinda similar to the AHK tho.
I think FTP is reworking their last hand functionality in a future update.