The Hyphenation plugin enhances the visual appearance of text in Obsidian by enabling justified text alignment and hyphenation. It automatically applies hyphenation based on the system's primary language setting, which can be customized per file using a frontmatter key. The plugin targets paragraph, ordered list, and unordered list elements in preview mode, improving the readability of text while excluding external links for aesthetic reasons. This tool is useful for users who prioritize clean and professional text formatting in their notes.