Re: [PATCH 0/1] MR6547: uxtheme: Better detect the presence of default transparent colour in prepare_alpha().

[Zhiyi Zhang (＠zhiyi)]

Zhiyi Zhang (@zhiyi) commented about dlls/uxtheme/msstyles.c:
> }
>
> if (dib.dsBm.bmBitsPixel != 32)
> +    {
> +        if (dib.dsBm.bmBitsPixel <= 8)

I think you need to check 16-bit bitmaps as well.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6547#note_83136