improved render channel count system

app/core.cpp

@@ -51,7 +51,6 @@
 #include "panel/viewer/viewer.h"
 #include "render/colormanager.h"
 #include "render/diskmanager.h"
-#include "render/pixelformat.h"
 #include "render/rendermanager.h"
 #ifdef USE_OTIO
 #include "task/project/loadotio/loadotio.h"
@@ -189,8 +188,6 @@ void Core::Stop()
 
   DiskManager::DestroyInstance();
 
-  PixelFormat::DestroyInstance();
-
   NodeFactory::Destroy();
 
   delete main_window_;
@@ -646,9 +643,6 @@ void Core::StartGUI(bool full_screen)
   // Initialize disk service
   DiskManager::CreateInstance();
 
-  // Initialize pixel service
-  PixelFormat::CreateInstance();
-
   // Connect the PanelFocusManager to the application's focus change signal
   connect(qApp,
           &QApplication::focusChanged,