The code is
material preset_{NUMBER}_bodyMatL
{
	technique
	{
		pass
		{
			alpha_rejection greater_equal 128
			texture_unit
			{
				texture {YOURTEX}.png
			}
		}
	}
}Make sure your image is a png
and when you color it, make sure you only color the leg, using a totally transparent square will make the whole side disappear.