03-25-2019, 01:23 PM
(This post was last modified: 03-25-2019, 01:32 PM by rich2005.
Edit Reason: edit 4.
)
Ouch... that looks like a nasty bug. Your screenshot is fine. I can reproduce that.
From your screenshot, that little diagram is in a transparent layer.
Try:
1. Increase the precision to 16 bit floating point. (sRGB or Linear) Image -> Precision
![[Image: 6vtUZyX.jpg]](https://i.imgur.com/6vtUZyX.jpg)
2. Now do the color adjustment, I am using brightness/contrast since levels is not very effective on the (very) dim image.
![[Image: cNg16yu.jpg]](https://i.imgur.com/cNg16yu.jpg)
3. OK that and it should work
![[Image: 2dxOnHg.jpg]](https://i.imgur.com/2dxOnHg.jpg)
4. Do not turn back to 8 bit
save the gimp.xcf as-is or export as a 8 bit RGBA png
I will do a few more tests and post a bug-report.
From your screenshot, that little diagram is in a transparent layer.
Try:
1. Increase the precision to 16 bit floating point. (sRGB or Linear) Image -> Precision
2. Now do the color adjustment, I am using brightness/contrast since levels is not very effective on the (very) dim image.
3. OK that and it should work
4. Do not turn back to 8 bit
save the gimp.xcf as-is or export as a 8 bit RGBA pngI will do a few more tests and post a bug-report.