Question about Textures Size

[HECH]

Hi, Anyone know how to change the textures size in the XML file?
I'm working on a clothing mod, trying to replace the default picture with mine and make sure the size looks right.
Any insights would be highly appreciated.

[HECH]

I'm making a turret mod, which is composed of 3 parts:
1. building base
2. turret bullet
3. turret itself
I'm using the textures created by myself, but currently having a size issue.
In that xml file, I only see <drawsize> is available under the 'building base' part,
but I don't see that under 'turret', so I added one <drawsize> under 'turret' part but it doesn't work.
The issue now is there is no place to change the size of turret.