diff -r ca23936b455b -r 5d201ee4a9c3 src/libraries.cpp
--- a/src/libraries.cpp	Mon Jun 06 22:01:22 2022 +0300
+++ b/src/libraries.cpp	Tue Jun 07 01:37:26 2022 +0300
@@ -220,7 +220,7 @@
  * @param errors Where to stream any encountered errors
  * @return color table
  */
-ldraw::ColorTable LibraryManager::loadColorTable(QTextStream& errors)
+ldraw::ColorTable LibraryManager::loadColorTable(QTextStream& errors) const
 {
 	ldraw::ColorTable result;
 	for (const Library& library : this->libraries)