Cannot convert X11 theme to something acceptable by Windows

[Grief]

Hello!

I am trying to convert X11 cursor theme made by me to make it work on Windows, but I wasn't able to do that:

~/src/Metamorphosis ./Metamorphosis.py -i ~/src/hand-of-evil/hand-of-evil/cursors -t Windows -o win                                                                                  [code: 130, time: 0,000s]

Metamorphosis working...

---> Processing Input    #0:             `/home/grief/src/hand-of-evil/hand-of-evil/cursors`
------> Start Processing #0:             `cursors` folder
------> Process          #0:             aborted, insert `.ani`, `.cur` or `X11` cursor(s) in a folder.
------> Start Processing #1:             `cursors` folder
------> Start Processing #1.1:           `color-picker`
------> Process          #1.1:           aborted, duplicate file found.
------> Start Processing #1.2:           `X_cursor`
------> Process          #1.2:           aborted, duplicate file found.
------> Start Processing #1.3:           `cross`
------> Process          #1.3:           aborted, duplicate file found.
------> Start Processing #2:             `cursors` folder
------> Process          #2:             aborted, insert `.ani`, `.cur` or `X11` cursor(s) in a folder.
------> Start Processing #2.4:           `zoom-in`
------> Process          #2.4:           aborted, duplicate file found.
------> Start Processing #3:             `cursors` folder
------> Process          #3:             aborted, insert `.ani`, `.cur` or `X11` cursor(s) in a folder.

and so on. No files were created. Here is the theme itself: https://github.com/Grief/hand-of-evil/