FlexibleRichTextView

This library is used for showing various rich text, including LaTeX, images, codes, tables, and normal styles such as center, bold, italic, and so on. An interesting feature is, that you can customize most tags as whatever you want. It uses CodeView to support code highlight, and JLaTeXMath to support LaTeX. The method to parse rich text is something like recursively descending. I'm open to PR that could improve performance, fix bugs and do anything to make this library better.