Alfadir said:Just make a test it don't need to much time to make the same picture in 15 and 24 bit and display it with an homebrew you will see the differrence no need to buy new eyes for that.Normmatt said:those are all talking about the screen itself but the hardware to do gfx in the nds/gba only allows 16bit for each colour and so maximum is 15bit with 1 bit for alpha. Seriously go read gbatek you might learn a thing or two.
So 15bit+1 for alpha, ok, your the expert, but clearly some coders have found a way to use at least the last bit for color instead of alpha-channel.
Twice more color 32k to 64k using one more bit.
No, its simply not possible that last bit is ALWAYS alpha. Your eyes are deceiving you, when the 24bit picture is down sampled it is dithered which could be why you think it looks better.