FOSS gamedev and creative worlds

Hello everyone!
I'm creating this Topic because I need help about creating Texture Pack
No as they are created.
if anyone knows how to make them please tell me
Thank You!!
Sorry for my very bad English

Take an existing texture pack, look at it, do the same.
You will need an imagemanipulationprogram (I use gimp). Name the images as the original textures (e.g. default_dirt) and save the images as .png .

If using Windows, create a new folder somewhere, then use Explorer's "Search" function to search for "*.png" files (or Images) in <yourminetestdir>\games\minetest_game. Copy all the files found into your new folder, then edit the images as you want.

EDIT: Note: *COPY*; not move (i.e. hold Ctrl while you drag & drop the files, or Ctrl+C and Ctrl+V).