| Property | 
                      Description | 
                    
                  
      | ascentLine | The Ascent line is typically located at the top of the tallest glyph in the typeface. | 
      | baseline | The Baseline is an imaginary line upon which all glyphs appear to rest on. | 
      | capLine | The Cap line is typically located at the top of capital letters. | 
      | descentLine | The Descent line is typically located at the bottom of the glyph with the lowest descender in the typeface. | 
      | familyName | The name of the font typeface also known as family name. | 
      | lineHeight | The line height represents the distance between consecutive lines of text. | 
      | meanLine | The Mean line is typically located at the top of lowercase letters. | 
      | pointSize | The point size used for sampling the typeface. | 
      | scale | The relative scale of the typeface. | 
      | strikethroughOffset | The position of the strikethrough. | 
      | strikethroughThickness | The thickness of the strikethrough. | 
      | styleName | The style name of the typeface which defines both the visual style and weight of the typeface. | 
      | subscriptOffset | The position of characters using subscript. | 
      | subscriptSize | The relative size / scale of subscript characters. | 
      | superscriptOffset | The position of characters using superscript. | 
      | superscriptSize | The relative size / scale of superscript characters. | 
      | tabWidth | The width of the tab character. | 
      | underlineOffset | The position of the underline. | 
      | underlineThickness | The thickness of the underline. |