diff --git a/Source/Fractorium/EmberTreeWidgetItem.h b/Source/Fractorium/EmberTreeWidgetItem.h
index 1187977..0fb5996 100644
--- a/Source/Fractorium/EmberTreeWidgetItem.h
+++ b/Source/Fractorium/EmberTreeWidgetItem.h
@@ -47,7 +47,7 @@ public:
 	/// <param name="height">The height of the image in pixels</param>
 	void SetImage(vector<byte>& v, uint width, uint height)
 	{
-		constexpr auto size = 64;
+		constexpr auto size = PREVIEW_SIZE;
 		m_Image = QImage(width, height, QImage::Format_RGBA8888);
 		memcpy(m_Image.scanLine(0), v.data(), SizeOf(v));//Memcpy the data in.
 		m_Pixmap = QPixmap::fromImage(m_Image).scaled(QSize(size, size), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);//Create a QPixmap out of the QImage, scaled to size.
diff --git a/Source/Fractorium/FractoriumEmberController.h b/Source/Fractorium/FractoriumEmberController.h
index 65c6eb4..a7d0d95 100644
--- a/Source/Fractorium/FractoriumEmberController.h
+++ b/Source/Fractorium/FractoriumEmberController.h
@@ -32,7 +32,7 @@ class Fractorium;
 template <typename T> class PreviewRenderer;
 template <typename T> class TreePreviewRenderer;
 
-#define PREVIEW_SIZE 256
+#define PREVIEW_SIZE 128
 #define UNDO_SIZE 512
 
 /// <summary>
diff --git a/Source/Fractorium/FractoriumLibrary.cpp b/Source/Fractorium/FractoriumLibrary.cpp
index 8616a4b..72a7f9d 100644
--- a/Source/Fractorium/FractoriumLibrary.cpp
+++ b/Source/Fractorium/FractoriumLibrary.cpp
@@ -176,18 +176,18 @@ void FractoriumEmberController<T>::SyncLibrary(eLibraryUpdate update)
 template <typename T>
 void FractoriumEmberController<T>::FillLibraryTree(int selectIndex)
 {
-	uint size = 64;
-	uint i = 0;
-	const auto tree = m_Fractorium->ui.LibraryTree;
+	const uint size = PREVIEW_SIZE;
 	vector<byte> v(size * size * 4);
-	StopAllPreviewRenderers();
+	const auto tree = m_Fractorium->ui.LibraryTree;
 	tree->clear();
+	StopAllPreviewRenderers();
 	auto fileItem = new QTreeWidgetItem(tree);
 	QFileInfo info(m_EmberFile.m_Filename);
 	fileItem->setText(0, info.fileName());
 	fileItem->setToolTip(0, m_EmberFile.m_Filename);
 	fileItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsSelectable | Qt::ItemIsDropEnabled);
 
+	uint i = 0;
 	for (auto& it : m_EmberFile.m_Embers)
 	{
 		auto emberItem = new EmberTreeWidgetItem<T>(&it, fileItem);
@@ -216,7 +216,7 @@ void FractoriumEmberController<T>::FillLibraryTree(int selectIndex)
 template <typename T>
 void FractoriumEmberController<T>::UpdateLibraryTree()
 {
-	const uint size = 64;
+	const uint size = PREVIEW_SIZE;
 	vector<byte> v(size * size * 4);
 	const auto tree = m_Fractorium->ui.LibraryTree;
 
@@ -479,18 +479,18 @@ void FractoriumEmberController<T>::StopAllPreviewRenderers()
 template <typename T>
 void FractoriumEmberController<T>::FillSequenceTree()
 {
-	const uint size = 64;
-	uint i = 0;
-	const auto tree = m_Fractorium->ui.SequenceTree;
+	const uint size = PREVIEW_SIZE;
 	vector<byte> v(size * size * 4);
-	m_SequencePreviewRenderer->Stop();
+	const auto tree = m_Fractorium->ui.SequenceTree;
 	tree->clear();
+	StopAllPreviewRenderers();
 	auto fileItem = new QTreeWidgetItem(tree);
 	QFileInfo info(m_SequenceFile.m_Filename);
 	fileItem->setText(0, info.fileName());
 	fileItem->setToolTip(0, m_SequenceFile.m_Filename);
 	fileItem->setFlags(Qt::ItemIsEnabled | Qt::ItemIsEditable | Qt::ItemIsSelectable);
 
+	uint i = 0;
 	for (auto& it : m_SequenceFile.m_Embers)
 	{
 		auto emberItem = new EmberTreeWidgetItemBase(fileItem);