🩹 Fix the None type not being bolded

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Fixed
+
+- The `None` type not being bolded
+
 ## v1.0.1 - 2024-04-06
 
 ### Fixed
@@ -15,4 +19,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## v1.0.0 - 2024-03-05
 
-- Initital released
+- Initital released

birdie_snapshots/data_is_styled_depending_on_its_type.new

@@ -0,0 +1,15 @@
+---
+version: 1.0.4
+title: data is styled depending on its type
+---
+#(
+  Ok(1234),
+  "blah",
+  True,
+  Nil,
+  None,
+  //fn(a) { ... },
+  3.14,
+  "A",
+  Foo(1, "2", "3"),
+)

src/pprint.gleam

@@ -254,11 +254,12 @@ fn pretty_custom_type(
       }
     })
 
-  let open = doc.concat([ansi(name, style, config), doc.from_string("(")])
+  let name = ansi(name, style, config)
+  let open = doc.concat([name, doc.from_string("(")])
   let close = doc.from_string(")")
 
   case fields {
-    [] -> doc.from_string(name)
+    [] -> name
     // If the constructor has only one field, it is formatted without indenting
     // its field to improve readability. In other words, it is formatted like this
     //

test/pprint_test.gleam

@@ -1,5 +1,6 @@
 import gleam/dict
 import gleam/dynamic
+import gleam/option.{None}
 import gleeunit
 import gleeunit/should
 import birdie
@@ -47,7 +48,17 @@ pub fn complex_data_test() {
 }
 
 pub fn coloring_test() {
-  #(Ok(1234), "blah", True, Nil, fn(a) { a }, 3.14, <<65>>, Foo(1, "2", "3"))
+  #(
+    Ok(1234),
+    "blah",
+    True,
+    Nil,
+    None,
+    fn(a) { a },
+    3.14,
+    <<65>>,
+    Foo(1, "2", "3"),
+  )
   |> pprint.styled
   |> birdie.snap("data is styled depending on its type")
 }