Oh, well, thanks, it seems like it worked.

Added 20 minutes later
I've encountered another problem here, it's not specifically about Heroes, but it does relate to it.
In Photoshop, for the main hero image, I initially set:

Width: 128 pixels
Height: 128 pixels
Resolution: 128 pixels/inch
Colors: RGB 32-bit

Is this correct? Please advise if I'm wrong.
And how do I save my creation in TGA format?
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Please, explain it to me or point me to the relevant post in another thread.