diff -r cf9a854b56a9 -r 3a4b132b8353 src/libraries.h
--- a/src/libraries.h	Tue Jun 28 19:43:55 2022 +0300
+++ b/src/libraries.h	Tue Jun 28 19:47:34 2022 +0300
@@ -55,14 +55,14 @@
 	auto end() const { return this->libraries.end(); }
 	QString findFile(QString fileName) const;
 	void addLibrary(const Library& library);
-	void removeLibrary(const qsizetype libraryIndex);
-	const Library& library(qsizetype libraryIndex) const;
-	void setLibraryPath(qsizetype libraryIndex, const QDir& path);
-	void setLibraryRole(qsizetype libraryIndex, const Library::Role role);
+	void removeLibrary(const index_t libraryIndex);
+	const Library& library(index_t libraryIndex) const;
+	void setLibraryPath(index_t libraryIndex, const QDir& path);
+	void setLibraryRole(index_t libraryIndex, const Library::Role role);
 	void restoreFromSettings();
 	void storeToSettings();
-	qsizetype count() const;
-	void moveLibrary(const qsizetype libraryFromIndex, const qsizetype libraryToIndex);
+	index_t count() const;
+	void moveLibrary(const index_t libraryFromIndex, const index_t libraryToIndex);
 	// Definitions for QAbstractTableModel
 	Qt::ItemFlags flags(const QModelIndex& index) const override;
 	QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
@@ -72,7 +72,7 @@
 		int role = Qt::DisplayRole) const override;
 	int rowCount(const QModelIndex&) const override;
 	int columnCount(const QModelIndex&) const override;
-	bool isValidIndex(const qsizetype libraryIndex) const;
+	bool isValidIndex(const index_t libraryIndex) const;
 	ColorTable loadColorTable(QTextStream& errors) const;
 private:
 	enum Column
@@ -80,6 +80,6 @@
 		RoleColumn,
 		PathColumn
 	};
-	void signalLibraryChange(const qsizetype library);
+	void signalLibraryChange(const index_t library);
 	Libraries libraries;
 };