Chai is a TEA-based text editor with a lot of features. CHAI is a forked version of the TEA text editor.
CHAI features are:

Extremely small size
Built-in two-panel file manager
Spellchecker (aspell client)
No annoying confirmations!
Tabbed layout engine
Multiply encodings support
Code snippets
X[HTML], Docbook, LaTeX, Wikipedia editing support
Templates
RTF-reader
Text analyzer called UNITAZ
Hotkeys customizations
"Open at cursor"-function for HTML-files and images
Misc [X]HTML tools
Preview in external browsers
String-handling functions such as sorting, reverse, trimming, filtering, conversions etc.
SRT subtitles editing functions
Morse code translator
Bookmarks
Dynamic syntax highlighting
Drag'n'drop support (with text files and pictures)
Built-in image viewer (PNG, JPEG, GIF, WBMP, BMP)
Automatic text encoding detection for Russian, Ukrainian, Finnish, German, Serbian, Polish, Portuguese, Spanish, Turkish, Slovak, Slovenian, Latvian and more