... C.1 Glossary of font terms . ... Font Caching . ... TrueType contains a hierarchical set of tables and glyph representations. ... A TrueType Collection (or TTC ) is an extension to the TrueType format that includes tables that allow for multiple TrueType fonts to be contained within a single TrueType font file. ... A given implementation will know which downloadable font formats it supports and can thus use the format hint to avoid downloading fonts in an unsupported format. ... bsln table, see note...