This is a guide to make a rainbow picture using Gimp.
1. Take the screenshot of your BABV character and open it with Gimp
2. Click on the Blend tool
3. Change the mode from Normal to Addition
4. Change the gradient colors
You may use what ever colors you want, but for a rainbow picture, these two are best
5. Drag the cursor across the picture and then let go
The color blend will be different depending on where you drag the cursor
6. It should look something like this
7. Now to save it! Go to File >> Save As…
8. Name it whatever you want, but make sure it's .PNG!
9. Click Save
And here is your result!
I know it's not that good but I just made it to demonstrate.
*This also works with texts.
If you have any questions about this guide, please ask.