I have Gimp 2.8.16. I have repeatedly attempted to create a transparent background for a simple image with a white background. I have tried this tutorial http://docs.gimp.org/en/gimp-using-web-transparency.html and this tutorial from StackExchange Making the background of an image transparent in Gimp . I have used .png and .jpg images; neither type works: the png automatically has an alpha channel; the jpg image needs to have an alpha channel added.
I have followed these tutorials to the letter; yet, the alpha channel never shows up as transparent; it is always white. If I hide the alpha channel in the channels dialog, the entire image disappears. If I either save it as png or export as png and reopen it, the image is completely white!
Is this feature buggy in 2.8.16 or does the process differ in this version from earlier ones?
What is even more irritating is that I opened the same png image in Krita and was bale to remove the white background in seconds creating a transparent background. Closing and reopening hte image in Krita showed the transparency; opening the same transformed image in GIMP showed me a non-transparent image with an alpha channel that if hidden removed the image completely even though the rgb channels showed the image.
I closed and re-opened GIMP and opened the "transparent" image (transformed in Krita) again. this time I created a new layer behind it and changed its background: the "transparent" now showed the new background.
Has GIMP changed the default background to white and no longer shows if an image has transparent areas?