First, a correction to my statement. The size of 96 x 128 is the size for one sprite set (all positions). A sheet usually has 8 of these, arranged 4 across, 2 down. So a complete sprite sheet set is typically 384 x 256. If you do not add the $ to the beginning of the file name, the maker assumes that this is the size and acts accordingly.
With a standard sprite sheet, when you go to select the graphic for an actor, the maker will put a rectangle around 1/8 of the sheet.
With an event, the standard is for the maker to select one 32 x 32 tile as the event. This is how the event starts. So say you are doing a NPC walking around town, you select just one of the sprite poses for it to start off as. So when making an event with a standard 384 x 256, the selection square is 32 x 32. Since a full sprite sheet has all 12 positions of 8 different sprites, that's 96 32 x 32 tiles to choose from.
For an event, if you are selecting a character or sprite sheet that has different dimensions, the maker will stll divide it into 96 sections. Take this great catapult by QTPI0121. I've imported it through the resource manager, but I forgot to add the $ to the beginning. So the maker assumes it is laid out and divides it into 96 sections for me to choose from, resulting in teeny tiny rectangles.
That won't work. So what I need to do is go back and put the dollar sign. Once I do that, everything is good to go.
I hope this helps make it a little more clear. And really, if you are still unsure, just try putting the $ in front and see what happens. If you are still having trouble, can you post a screenshat of what you are doing so we can try to help?
