src: Bug fixes

* fixed - to _ in color schemes
* fixed yoda talk in Tutorial
* fixed graph node with no children but qualifier has expand toggle
* added placeholder and file filter for maven detection on MacOS
* fixed NameHierarchy delimiter wrong in SearchIndex

src/lib/component/controller/GraphController.cpp

@@ -1332,6 +1332,7 @@ void GraphController::addExpandToggleNode(DummyNode* node) const
 	expandNode->visible = true;
 	expandNode->expanded = node->expanded;
 
+	bool hasVisibleSubNode = false;
 	for (size_t i = 0; i < node->subNodes.size(); i++)
 	{
 		DummyNode* subNode = node->subNodes[i].get();
@@ -1343,16 +1344,25 @@ void GraphController::addExpandToggleNode(DummyNode* node) const
 			continue;
 		}
 
+		if (subNode->isQualifierNode())
+		{
+			continue;
+		}
+
 		for (std::shared_ptr<DummyNode> subSubNode : subNode->subNodes)
 		{
 			if (!subSubNode->visible)
 			{
 				expandNode->invisibleSubNodeCount++;
 			}
+			else
+			{
+				hasVisibleSubNode = true;
+			}
 		}
 	}
 
-	if (expandNode->isExpanded() || expandNode->invisibleSubNodeCount)
+	if ((expandNode->isExpanded() && hasVisibleSubNode) || expandNode->invisibleSubNodeCount)
 	{
 		node->subNodes.push_back(expandNode);
 	}

src/lib/project/Project.cpp

@@ -225,16 +225,16 @@ void Project::load()
 
 	if (canLoad)
 	{
-		m_storage->setMode(SqliteStorage::STORAGE_MODE_READ);
-		m_storage->buildCaches();
-		m_storageAccessProxy->setSubject(m_storage.get());
-
 		m_sourceGroups = SourceGroupFactory::getInstance()->createSourceGroups(m_settings->getAllSourceGroupSettings());
 		if (!m_sourceGroups.empty())
 		{
 			NameHierarchy::setDelimiter(getSymbolNameDelimiterForLanguage(m_sourceGroups.front()->getLanguage()));
 		}
 
+		m_storage->setMode(SqliteStorage::STORAGE_MODE_READ);
+		m_storage->buildCaches();
+		m_storageAccessProxy->setSubject(m_storage.get());
+
 		MessageFinishedParsing().dispatch();
 		MessageStatus("Finished Loading", false, false).dispatch();
 	}

src/lib_gui/qt/window/project_wizzard/QtProjectWizzardContentPreferences.cpp

@@ -172,11 +172,6 @@ void QtProjectWizzardContentPreferences::populate(QGridLayout* layout, int& row)
 		m_mavenPath->setFileFilter("Maven command (mvn.cmd)");
 		m_mavenPath->setPlaceholderText("<maven_path>/bin/mvn.cmd");
 	}
-	else if (QSysInfo::macVersion() != QSysInfo::MV_None)
-	{
-		// todo: add filter here
-		// todo: add placeholder here
-	}
 	else
 	{
 		m_mavenPath->setFileFilter("Maven command (mvn)");