Minor documentation improvements.
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diff --git a/include/freetype/config/ftoption.h b/include/freetype/config/ftoption.h
index 37a0d00..7e81fa4 100644
--- a/include/freetype/config/ftoption.h
+++ b/include/freetype/config/ftoption.h
@@ -640,17 +640,21 @@ FT_BEGIN_HEADER
/* [1] for a technical overview on what this means. See `ttinterp.h' */
/* for more details on the LEAN option. */
/* */
- /* There are three options. */
+ /* There are three possible values. */
/* */
- /* 1. This option is associated with the `Infinality' moniker. */
- /* Contributed by an individual nicknamed Infinality with the goal of */
+ /* Value 1: */
+ /* This value is associated with the `Infinality' moniker, */
+ /* contributed by an individual nicknamed Infinality with the goal of */
/* making TrueType fonts render better than on Windows. A high */
/* amount of configurability and flexibility, down to rules for */
/* single glyphs in fonts, but also very slow. Its experimental and */
/* slow nature and the original developer losing interest meant that */
/* this option was never enabled in default builds. */
/* */
- /* 2. The new default mode for the TrueType driver. The Infinality code */
+ /* The corresponding interpreter version is v38. */
+ /* */
+ /* Value 2: */
+ /* The new default mode for the TrueType driver. The Infinality code */
/* base was stripped to the bare minimum and all configurability */
/* removed in the name of speed and simplicity. The configurability */
/* was mainly aimed at legacy fonts like Arial, Times New Roman, or */
@@ -660,14 +664,19 @@ FT_BEGIN_HEADER
/* that modern and web fonts render well while legacy fonts render */
/* okay. */
/* */
- /* 3. Compile both. */
+ /* The corresponding interpreter version is v40. */
+ /* */
+ /* Value 3: */
+ /* Compile both, making both v38 and v40 available (the latter is the */
+ /* default). */
/* */
/* By undefining these, you get rendering behavior like on Windows */
/* without ClearType, i.e., Windows XP without ClearType enabled and */
/* Win9x (interpreter version v35). Or not, depending on how much */
/* hinting blood and testing tears the font designer put into a given */
/* font. If you define one or both subpixel hinting options, you can */
- /* switch between between v35 and the ones you define. */
+ /* switch between between v35 and the ones you define (using */
+ /* `FT_Property_Set'). */
/* */
/* This option requires TT_CONFIG_OPTION_BYTECODE_INTERPRETER to be */
/* defined. */
diff --git a/include/freetype/ftttdrv.h b/include/freetype/ftttdrv.h
index a7b937f..79e3e6e 100644
--- a/include/freetype/ftttdrv.h
+++ b/include/freetype/ftttdrv.h
@@ -138,7 +138,6 @@ FT_BEGIN_HEADER
* interpreter-version
*
* @description:
-
* Currently, three versions are available, two representing the
* bytecode interpreter with subpixel hinting support (old `Infinality'
* code and new stripped-down and higher performance `minimal' code) and