Fallback Font - The Unicode BMP Fallback Font

The Unicode BMP Fallback Font

The Unicode BMP Fallback font is a Unicode font that was originally created for debugging purposes. It contains a glyph for every character in the Unicode Basic multilingual plane. Each glyph consists of a box containing the four hexadecimal digits corresponding to the Unicode value. The example to the left is a mock-up of the glyph for a space character (U+0020).

Unlike the Unicode Last Resort Font, the Unicode BMP Fallback font displays a different glyph for each different Unicode character, but cannot display all Unicode characters. Because four hexadecimal digits can only represent 64K characters (0000=0, FFFF=65,535) the Unicode BMP Fallback is limited to the 64K characters in the Unicode Basic Multilingual Plane.