Since my Mod have a long name like OL_Ability_1417d582-58b4-4e32-b29a-b70f841e8971, should i name it OL_Ability_1417d582-58b4-4e32-b29a-b70f841e8971_GUID ?
You can name your texture file whatever you want, like OLAbility_Icons, OLA_Icons, and so on.
Another confusing part is the :
Select the package you created previously, then click Save.
I can't see anything who can by a package that i've created in the editor.
Step 3 in this section:
Preparing_Your_Icon_Images mentions creating a resource package in the resource manager (with an included help image).
After you make a package, you should see it in the "Package:" dropdown in the "Create new texture atlas" window. When the texture atlas is created, it places a new texture resource into the package you select.
Make sure you create a package first before trying to make a new atlas.
