From 52bd4542a9f07cd43329c13b32fce725f78ae0d0 Mon Sep 17 00:00:00 2001
From: Jaromir Tomek <jaromir.tomek@gmail.com>
Date: Wed, 5 Apr 2023 14:23:57 +0200
Subject: [PATCH] Palette::findMaxPopulation() returns null for no swatches

---
 src/Palette.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Palette.php b/src/Palette.php
index 4ea1d41..8b99d54 100644
--- a/src/Palette.php
+++ b/src/Palette.php
@@ -76,6 +76,9 @@ public function __construct($swatches)
 
     private function findMaxPopulation()
     {
+        if (!$this->swatches) {
+            return null;
+        }
         return max(array_map(function (Swatch $swatch) {
             return $swatch->getPopulation();
         }, $this->swatches));