I was afraid this would be a slow search, but its negligible.
Tested performance on a quite big gif* and it was only 1900 ms on my slow
computer

*
https://web.archive.org/web/20140209162456/http://www.majhost.com/gallery/NoBullet/TF2/t2.gif

Best,
Karl

On Sat, Jun 13, 2020 at 1:12 PM <commits at source.squeak.org> wrote:

> Karl Ramberg uploaded a new version of MorphicExtras to project The Trunk:
> http://source.squeak.org/trunk/MorphicExtras-kfr.275.mcz
>
> ==================== Summary ====================
>
> Name: MorphicExtras-kfr.275
> Author: kfr
> Time: 10 June 2020, 6:41:33.727777 pm
> UUID: 26fa97c9-e242-8048-8c7c-53b2061c19f4
> Ancestors: MorphicExtras-mt.274
>
> Detect if animated image (eg. gif) has transparent color and use opaque
> background if so.
>
> =============== Diff against MorphicExtras-mt.274 ===============
>
> Item was changed:
>   ----- Method: AnimatedImageMorph>>fromReader: (in category 'private')
> -----
>   fromReader: reader
> -
>         images := reader forms.
>         delays := reader delays.
> +       images do:[: each | (each colors includes: Color transparent)
> ifTrue:[self isOpaque: true]].
> -       self isOpaque: true.
>         self reset.!
>
>
>
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