Allowing import Wireless Application Protocol Bitmap (WBMP) format
Operating System: Windows 10
Description of the feature
The Wireless Application Protocol Bitmap format (.wbmp) is a monochrome graphics file format optimized for mobile computing devices, and these images were used in some sites specifically optimized for WAP. With this feature GIMP would allowed to import this image, and export to any other formats.
Here is the specification: https://www.wapforum.org/what/technical/SPEC-WAESpec-19990524.pdf
A set of these images currently available here: https://bugzilla.mozilla.org/show_bug.cgi?id=182621
Use cases
This site embedded WBMP image within page: http://wap.gemal.dk/
The above link should be works properly if you added WML or FireMobileSimulator in Chrome.