"plus give the visH Number (which is used for the Save file; character avatar IDs).

the image for editing purpose.
https://imgur.com/a/vNeKXqi

Well...I CAN NOT share FULL image in public,
since there are other assets inside the image.

Therefore, you are ganna do it yourself.
Just a simple copy & paste & save image.
Using any Image Editing Tool will do the work.

Personally, I recommend using Paint . net to replace/edit the avatars.png.

character avatar image locate at:
...Steam\steamapps\common\Chromosome Evil 2\res\avatars.png

By the way,
Always make sure BACKUP the Original images/files before edit any work.

Thanks S.C. 16 BIT NIGHTS S.R.L. for creating this game."