This corresponds to the default hinting algorithm, optimized for standard gray-level rendering.

A lighter hinting algorithm for non-monochrome modes. Many generated glyphs are more fuzzy but better resemble its original shape. A bit like rendering on Mac OS X.

This variable is used to set the size of the FreeType font face cache. By default the cache is disabled and a value of 0 will disable the cache. Any other number is the number of font faces to cache, using this cache can decrease memory mappings of font files.