Variable: imagemagick-enabled-types

List of ImageMagick types to treat as images.
Each list element should be a string or symbol, representing one
of the image types returned by `imagemagick-types'. If the
element is a string, it is handled as a regexp that enables all
matching types.

The value of `imagemagick-enabled-types' may also be t, meaning
to enable all types that ImageMagick supports.

The variable `imagemagick-types-inhibit' overrides this variable.

If you change this without using customize, you must call
`imagemagick-register-types' afterwards.

If Emacs is compiled without ImageMagick support, this variable has no effect.