The Tengwar plugin enables users to incorporate Tengwar script into their Obsidian notes, enhancing the creative possibilities for fans of Tolkien's languages. It allows users to create code blocks with Tengwar text and supports customizing fonts within these blocks to suit different styles, such as Annatar, Eldamar, or Telcontar. Users can also modify the keyword for defining these blocks based on their preferences. The plugin supports both ISO 8859-1 and ConScript Unicode Registry encodings, ensuring compatibility with various Tengwar-related tools.