Syntax highlighting
TextMate grammars (via tm4e) for 21 languages: Java, Python, Rust, Go, Kotlin, C/C++, C#, Ruby, SQL, Markdown, and more.
Highlighting uses TextMate grammars (via tm4e) for 21 languages (Java, XML, shell, PowerShell, DOS batch, Python, Groovy, Kotlin, Ruby, C, C++, Rust, Go, C#, Markdown, JSON, CSS, HTML, YAML, INI, and SQL) plus TypeScript/JavaScript, PHP, Lua, Dockerfile, Terraform, TOML, and more added alongside their language servers.
Tokenization is stateful (it carries grammar state across lines, so block comments and heredocs highlight correctly) and incremental, an edit re-tokenizes only from the changed line, off the UI thread. Token colors are themed per editor theme.