All right, maybe these questions have already been asked before, but I have not found any records in this board's message database confirming this, so here they go...

I am aware of the fact that writes to $3f00 and $3f10 are ultimately mirrored to $3f00. Also, the same color written to those areas would be stored in $3f04, $3f08, $3f0c, $3f14, $3f18, and $3f1c. My question is, would colors stored in these latter areas (excluding $3f00 and $3f10) be considered as transparent colors, or would they be drawn on the screen in case some tile referenced them? Also, are writes to such areas completely ignored?

Thanks in advance.

hydesprojects.cjb.net