Re: Image-conversion shims

[Juri Linkov]

>> If the result is no worse than what we have in fundamental-mode, I think
>> it's good.  It's likely going to be better: image-mode could emit
>> a helpful message explaining which variable to set to enable the use of
>> external converters or which external converters to install to be able
>> to display the image, for example.
>
> That's true.  OK, you've convinced me: We should go through the list of
> file types the external converters offer and add the ones that make
> sense (.webp, .bmp, .etc) to auto-mode-alist, and we should change
> image-mode's messaging a bit.

Are file types that make sense the same file types
that are in the default value of imagemagick-enabled-types?

It could be a much shorter list for image-converter, and only
when customized to 't' it could support all possible types.