From e2e2cf116cf07b848b502d5f7c6b712b4bb7d796 Mon Sep 17 00:00:00 2001
From: badlogic <badlogic@gmail.com>
Date: Tue, 2 Dec 2025 13:03:48 +0100
Subject: [PATCH] Enable truecolor support for Windows Terminal

---
 packages/coding-agent/CHANGELOG.md       | 1 +
 packages/coding-agent/src/theme/theme.ts | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index 2eaa6e17..831df14c 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -7,6 +7,7 @@
 ### Fixed
 
 - **Windows Binary Path Resolution**: Fixed Bun compiled binary on Windows failing to find `package.json` and other assets. The binary was incorrectly using the Bun runtime's virtual filesystem path (`B:\~BUN\`) instead of the actual executable location. Now uses `process.execPath` which correctly points to the compiled binary, and updated detection to check for `%7EBUN` (URL-encoded `~BUN`) in `import.meta.url`.
+- **Windows Terminal Truecolor Support**: Fixed theme colors appearing washed out in Windows Terminal. The color mode detection now checks for `WT_SESSION` environment variable to enable truecolor (24-bit RGB) support instead of falling back to 256-color mode.
 
 ## [0.12.1] - 2025-12-02
 
diff --git a/packages/coding-agent/src/theme/theme.ts b/packages/coding-agent/src/theme/theme.ts
index 17e52042..2829764b 100644
--- a/packages/coding-agent/src/theme/theme.ts
+++ b/packages/coding-agent/src/theme/theme.ts
@@ -135,6 +135,10 @@ function detectColorMode(): ColorMode {
 	if (colorterm === "truecolor" || colorterm === "24bit") {
 		return "truecolor";
 	}
+	// Windows Terminal supports truecolor
+	if (process.env.WT_SESSION) {
+		return "truecolor";
+	}
 	const term = process.env.TERM || "";
 	if (term.includes("256color")) {
 		return "256color";