Help with iconset

Hello guys, I'm having a bit of trouble with making a custom iconset, the one that has the weapons, armor and misc icons.
I want to insert to the original iconset, the default icons with only a change of palette, yet I'm having problems to make the icon centralized within the 24x24 size per icon that the iconset use. Does someone has a tip on how to do that?
Thanks in advance! :D

I use Photoshop:

Use the grid. Default is CTRL + ' to bring it up.

Edit the grid size in edit->preferences->guides, grids and slices

It depends on what you're planning to do.


You cannot center an uneven number of pixels on an even grid - that is physically impossible, no matter what programs you use.


The 24x24 grid has two centerlines, and that means you can only center a grafic that also has two centerlines - you'll never be able to place a grafic with a single centerline centered into that grid.

Yeah, I'm aware of that. I'm just having problems inserting custom icons in the same position they're in the default iconsheet.

Thanks! Going to try it asap. :D

@Edit: Worked like a charm, thank you very much!