(.gifmss) is (GIF with embedded ISF), width 1480, height 1050, used by MemoSizeSketh.

RGB=(0,0,0) and RGB=(254,254,254) are special values in MYNRS. So, I need ColorLimitGifmss function.

GifmssToPng function have bugs.
In PC, please try several times.
TryMergeImage function does not work in my mobile device.
TryMerge(Canvas) function does not work in my mobile device.