diff --git a/README.md b/README.md
index 565e4e4..ac1a7a6 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,18 @@ providers:
 
 Customize this file to add your own providers, agents, and models.
 
+### Syntax highlighting
+
+Syntax highlighting is performed by [Chroma](https://github.com/alecthomas/chroma).
+
+Refer to [`Chroma/styles`](https://github.com/alecthomas/chroma/tree/master/styles) for available styles (TODO: add support for custom Chroma styles).
+
+Available formatters:
+- `terminal` - 8 colors
+- `terminal16` - 16 colors
+- `terminal256` - 256 colors
+- `terminal16m` - true color (default)
+
 ## Usage
 
 Here's the default help output for `lmcli`: