Centralize retained control capture release

src/node_color_quad.cpp

@@ -1,5 +1,6 @@
 #include "pch.h"
 #include "log.h"
+#include "legacy_ui_overlay_services.h"
 #include "node_color_quad.h"
 #include "shader.h"
 
@@ -54,7 +55,7 @@ kEventResult NodeColorQuad::handle_event(Event* e)
     }
     break;
     case kEventType::MouseUpL:
-        mouse_release();
+        pp::panopainter::release_legacy_mouse_capture(*this);
         dragging = false;
         break;
     case kEventType::MouseMove:
@@ -69,7 +70,7 @@ kEventResult NodeColorQuad::handle_event(Event* e)
         }
         break;
     case kEventType::MouseCancel:
-        mouse_release();
+        pp::panopainter::release_legacy_mouse_capture(*this);
         dragging = false;
         m_value = m_old_value;
         set_value(m_value.x, m_value.y);