They tailored and produced fonts in PostScript, TrueType and RISC OS formats.
[4] EFF produced high quality RISC OS versions of many popular fonts and typefaces, as well as a large collection of exclusive designs.
EFF RISC OS fonts were the first (besides those produced by Acorn Computers) to contain kerning data.
Dr Detyna was instrumental in the inclusion of several advanced typographical features into later versions of RISC OS.
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