Alright, I learned how to use TiLem, but it kind of disappointed me that it was slow and it could not execute contrast functions.
So now, with my sneaky little 83+ ROM in my hand, I am starting to learn PindurTI. Unfortunately, PTI does not use a skin and I do not know all the shortcuts for the buttons. Also, I do not know how to send files to PTI.
Now, I am asking for help in PTI (sending programs/apps and keypresses of some buttons not stated in the documentation, like [CLEAR]).