I am using gimp and I have tried various ways to make this white horse black and so far, I have got red and green?? Dunno. Any suggestions or tutorials will be welcomed. I have searched up and down DA and Youtube and they tell me other colors but I think White to black is going to be different. Plus I have markings to put on him because it will be a pinto.

I usually just desaturate then play around with curves

Premium and Brindle said:
I usually just desaturate then play around with curves

Thank you. I will give it a shot.

I've made horses pinto by accident a few times with the hues colours and saturation etc

I give up... I am just going to look for a black horse image... I get him black.. but then I lose detail and I think it is too complex for me at my level of learning right now.

Premium and Brindle said:

https://orig00.deviantart.net/4de7/f/2018/311/6/f/white_to_black_tutorial_by_midholly-dcrgl8e.png

I made a tutorial here if you want to check it out :)

You are amazing... thank you so much for doing that! I will find something special to do for you... gimme some time to get it together