no color support

2 files changed, 4 insertions, 2 deletions

diff --git a/README.md b/README.md
index 3ac15fd..4493dc2 100644
--- a/README.md
+++ b/README.md
@@ -773,6 +773,8 @@ If, however, the default behavior doesn't suit your needs you have control over
       - force: Turn on colorization always
 ```
 
+`erdtree` also supports [NO_COLOR](https://no-color.org/).
+
 <p align="center">
   <img src="https://github.com/solidiquis/erdtree/blob/master/assets/colorization.png?raw=true" alt="failed to load picture" />
 </p>
diff --git a/src/context/mod.rs b/src/context/mod.rs
index 9d331d7..c7e060a 100644
--- a/src/context/mod.rs
+++ b/src/context/mod.rs
@@ -327,8 +327,8 @@ impl Context {
     ///
     /// If Coloring is Force then this will always evaluate to `false`.
     pub fn no_color(&self) -> bool {
-        if color::NO_COLOR.get().is_some_and(Option::is_some) {
-            return true;
+        if let Some(Some(var)) = color::NO_COLOR.get() {
+            return !var.is_empty();
         }
 
         match self.color {