The great GIMP gif mystery

Can anyone explain to me why GIMP V2.3.9 saves gif’s at a quarter the size of GIMP V2.2.11? I’ve noticed it while saving screenshots for one of the tutorials on the site. Not only are they 25% of the old file size, but the image is far better too!

I have gone through all the gif save settings for the two versions and I can’t find any difference at all.

I’ve attached the same screenshot taken with both versions. The first is V2.2.11 and as you can see it’s not very good and it’s also 38Kb big.

GIMP V2.2.11

The second is V2.3.9 and is perfectly clear and 9Kb in size.

GIMP V2.3.9

What gives? I’m really curious to know. Have I missed something obvious?

One Response to “The great GIMP gif mystery”

  1. Wesley Tanaka Says:

    Looks like the first image was converted to indexed color using dithering.

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