From 4702461fe74ff559f8aeb21b6a0be85a669811d1 Mon Sep 17 00:00:00 2001
From: ConnorSkees <39542938+ConnorSkees@users.noreply.github.com>
Date: Sat, 15 Feb 2020 07:00:24 -0500
Subject: [PATCH] Allow 3 arguments in `rgba()`

---
 src/builtin/color/rgb.rs | 4 ++--
 tests/color.rs           | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/builtin/color/rgb.rs b/src/builtin/color/rgb.rs
index e7d103c..cc0bd1a 100644
--- a/src/builtin/color/rgb.rs
+++ b/src/builtin/color/rgb.rs
@@ -93,10 +93,10 @@ pub(crate) fn register(f: &mut BTreeMap<String, Builtin>) {
                 Value::Dimension(n, Unit::Percent) => (n / Number::from(100)) * Number::from(255),
                 _ => todo!("expected either unitless or % number for alpha"),
             };
-            let alpha = match arg!(args, 3, "alpha").eval() {
+            let alpha = match arg!(args, 3, "alpha"=Value::Dimension(Number::from(1), Unit::None)).eval() {
                 Value::Dimension(n, Unit::None) => n,
                 Value::Dimension(n, Unit::Percent) => n / Number::from(100),
-                _ => todo!("expected either unitless or % number for alpha"),
+                _ => todo!("expected either unitless or % number for alpha")
             };
             Some(Value::Color(Color::from_rgba(red, green, blue, alpha)))
         }
diff --git a/tests/color.rs b/tests/color.rs
index 135815e..786607e 100644
--- a/tests/color.rs
+++ b/tests/color.rs
@@ -113,6 +113,11 @@ test!(
     "a {\n  color: rgba(1, 2, 3, 50%);\n}\n",
     "a {\n  color: rgba(1, 2, 3, 0.5);\n}\n"
 );
+test!(
+    rgba_3_args,
+    "a {\n  color: rgba(7.1%, 20.4%, 33.9%);\n}\n",
+    "a {\n  color: #123456;\n}\n"
+);
 test!(
     hsl_basic,
     "a {\n  color: hsl(193, 67%, 99);\n}\n",