Hi I came across your tool today and it's pretty handy!
Question I have though I didn't see in the readme is how to tell how many sprites are selected in blue? Like the top bar will show the name of PNG file and total Spritecount. But for example I have a large PGN with spritecount of 5200, but I only need 64 of the sprites for a new texture sheet, So if I start selecting random amount of sprites on the sheet how do I know what the total count is?