SpecialCharacterDefinition
                      interface
                
              Properties
- 
                              character : stringmodule:special-characters/specialcharacters~SpecialCharacterDefinition#characterA human-readable character displayed as the label (e.g. "ε"). 
- 
                              title : stringmodule:special-characters/specialcharacters~SpecialCharacterDefinition#titleA unique name of the character (e.g. "greek small letter epsilon").