But recently, I remembered that *.BMP format with 32 bit supports alpha channel (transparency) -
And so, there was a question to dc - is it possible to use it in CS2D (my test image is painted black) and whether it will replace the standard *.BMP to 32bit or *.PNG?
BMP is both uncompressed and lossless. PNG is compressed but lossless. Thus, with a lossless format the only visible difference is the file size(which is very useful for transferring files). I'd recommend using PNG over BMP unless you can't for compatibility reasons.
Will also connected support file formats like *. Gif and *. Apng? (At the moment, so a lot of problems with the creation of animations - a large number of frames, requires a large amount of files loaded into memory that heavily loads your computer.)