From 84fde36933dce4896b843b2c551f41d0798f3d6e Mon Sep 17 00:00:00 2001
From: Tobias Werth <werth@cs.fau.de>
Date: Fri, 28 Feb 2025 12:08:47 +0000
Subject: [PATCH] Handle problemBadges for problems w/o explicit color
 gracefully.

---
 webapp/src/Twig/TwigExtension.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/webapp/src/Twig/TwigExtension.php b/webapp/src/Twig/TwigExtension.php
index 5ed73d6f14..f66a0acff9 100644
--- a/webapp/src/Twig/TwigExtension.php
+++ b/webapp/src/Twig/TwigExtension.php
@@ -1147,7 +1147,7 @@ public function fileTypeIcon(string $type): string
     public function problemBadge(ContestProblem $problem, bool $grayedOut = false): string
     {
         $rgb = Utils::convertToHex($problem->getColor() ?? '#ffffff');
-        if ($grayedOut) {
+        if ($grayedOut || empty($rgb)) {
             $rgb = Utils::convertToHex('whitesmoke');
         }
         $background = Utils::parseHexColor($rgb);
@@ -1177,7 +1177,7 @@ public function problemBadge(ContestProblem $problem, bool $grayedOut = false):
     public function problemBadgeMaybe(ContestProblem $problem, ScoreboardMatrixItem $matrixItem): string
     {
         $rgb = Utils::convertToHex($problem->getColor() ?? '#ffffff');
-        if (!$matrixItem->isCorrect) {
+        if (!$matrixItem->isCorrect || empty($rgb)) {
             $rgb = Utils::convertToHex('whitesmoke');
         }
         $background = Utils::parseHexColor($rgb);