Updated darker theme to show rtf or html text that is dark better

Debug/Themes/DarkerDitto.xml

@@ -33,8 +33,8 @@
 	<CaptionSize></CaptionSize>
 	<CaptionFontSize></CaptionFontSize>
 
-	<DescriptionWindowBG>RGB(51,51,51)</DescriptionWindowBG>
-	<DescriptionWindowText>RGB(238,238,238)</DescriptionWindowText>
+	<DescriptionWindowBG>RGB(100,100,100)</DescriptionWindowBG>
+	<DescriptionWindowText>RGB(200,200,200)</DescriptionWindowText>
 
 	<MainWindowBG>RGB(0,0,0)</MainWindowBG>
 

src/DeleteClipData.cpp

@@ -201,10 +201,13 @@ void CDeleteClipData::OnClose()
 		return;
 	}
 
-	m_pDescriptionWindow->CloseWindow();
-	m_pDescriptionWindow->DestroyWindow();
-	delete m_pDescriptionWindow;
-	m_pDescriptionWindow = nullptr;
+	if (m_pDescriptionWindow != nullptr)
+	{
+		m_pDescriptionWindow->CloseWindow();
+		m_pDescriptionWindow->DestroyWindow();
+		delete m_pDescriptionWindow;
+		m_pDescriptionWindow = nullptr;
+	}
 	DestroyWindow();
 }