I don't know why but for some channels, logos are not working. Even when I put "^.png". This happen for "TVP1" "TVP2" "TVP INFO Lodz" and "Polsat" Every other channel works.
What do you think? I tried to pick size so image looks good on the list and not bad on full hd (OSD). Tell me if image file size is too big, but I think ~1.7KB per file is not bad. Converting to jpg doesn't reduce size but reduce a lot of quality, so png are better.
There is minor bug, because when there are two channels with the same name on the list, logo are loaded only for one of them.