WBMP

WBMP is the Wireless Application Protocol's one-bit bitmap: a type and a header byte, the width and height as multi-byte integers, then rows of bits, white where set. It reads and writes type 0 through the Egami.Formats.Extended package: register it with WithWbmp() or WithExtendedFormats() (Extended formats).

Reads	Type 0, with extension headers skipped
Writes	Type 0, a pixel white when its gray value is at least half
Natural pixel type	Gray8, black 0 and white 255
FormatInfo	WbmpFormat.Info: name WBMP, extension .wbmp, MIME type image/vnd.wap.wbmp

WBMP has no real signature: a file is taken for WBMP only when it starts with type 0, no extension headers and a size above zero, and only after every other registered format has declined it. Rows stream from the input.