$ and ! symbols

I've been searching around the interwebs for a while, but I can't seem to find what the $ and ! symbols before some charsets mean. When are they needed, and what exactly do they do?

The size for 1 character includes 4 directions (down, left, right, and up) and 3 patterns for a total of 12 patterns in a set order. One file should contain 2 characters vertically and 4 horizontally, for a total of 8 characters. The size of one character is calculated to be 1/12 the width and 1/8 the height of this file.

Note that in order to make overlapping with buildings appear more natural, characters are displayed 4 pixels above the tiles.

You can disable this effect by putting a "!" at the beginning of the file name. This is mainly used for object-type characters on the map, such as doors and treasure chests. It is possible to use this in conjunction with the special symbol "$".

If you put a "$" at the beginning of the file name, only one character per file will be used. In this case, the character size is 1/3 the width and 1/4 the height of the file. It is possible to use this in conjunction with the special symbol "!".

From the help file.

Ah...I never thought to look at the help file...thanks.