launcher: fix light mode, group settings into resizable sections

src/launcher/include/configurationEditDialog.h

@@ -10,6 +10,7 @@ class QByteArray;
 class QGroupBox;
 class QListWidget;
 class QMoveEvent;
+class QResizeEvent;
 class QToolButton;
 class QSettings;
 class QWidget;
@@ -48,6 +49,7 @@ protected:
 	void AddGameDirectoryItem(const QString& dir);
 
 	void moveEvent(QMoveEvent* event) override;
+	void resizeEvent(QResizeEvent* event) override;
 
 	static QByteArray g_last_geometry;
 

src/launcher/include/configurationListWidget.h

@@ -11,6 +11,7 @@
 
 class ConfigurationItem;
 class CompatibilityDatabase;
+class QEvent;
 class QTreeWidgetItem;
 class QPoint;
 class MainDialog;
@@ -52,6 +53,9 @@ signals:
 	void Run();
 	void Select();
 
+protected:
+	void changeEvent(QEvent* event) override;
+
 public slots:
 	void WriteSettings();
 	void ReadSettings();
@@ -74,6 +78,7 @@ private:
 	void               ClearCustomSettings(ConfigurationItem* item);
 	void               SelectItem(QTreeWidgetItem* witem);
 	void               ApplyCompatibility();
+	void               UpdateToolbarIcons();
 	[[nodiscard]] bool HasValidGameDirectory() const;
 
 	ConfigurationItem*            m_selected_item = nullptr;

src/launcher/include/gameListTreeWidget.h

@@ -1,7 +1,6 @@
 #ifndef GAME_LIST_TREE_WIDGET_H
 #define GAME_LIST_TREE_WIDGET_H
 
-#include <QColor>
 #include <QPaintEvent>
 #include <QPainter>
 #include <QPalette>
@@ -44,7 +43,9 @@ protected:
 				painter.fillRect(event->rect(), palette().brush(QPalette::Base));
 			} else {
 				painter.drawPixmap(m_scaled_pos, m_scaled);
-				painter.fillRect(event->rect(), QColor(0, 0, 0, 115));
+				auto overlay = palette().color(QPalette::Base);
+				overlay.setAlpha(185);
+				painter.fillRect(event->rect(), overlay);
 			}
 		}
 

src/launcher/include/launcherTheme.h

@@ -0,0 +1,12 @@
+#ifndef LAUNCHER_THEME_H
+#define LAUNCHER_THEME_H
+
+class QApplication;
+
+namespace LauncherTheme {
+
+void Initialize(QApplication& application);
+
+} // namespace LauncherTheme
+
+#endif // LAUNCHER_THEME_H