feat(shell): make experimental ownerdraw support optional

fix #190
fix #187

Author: std-microblock

src/shell/config.h

@@ -61,6 +61,7 @@ struct config {
     bool vsync = true;
     bool ignore_owner_draw = true;
     bool reverse_if_open_to_up = true;
+    bool experimental_ownerdraw_support = false;
 
     // debug purpose only
     bool search_large_dwItemData_range = false;

src/shell/contextmenu/contextmenu.cc

@@ -130,7 +130,7 @@ menu menu::construct_with_hmenu(HMENU hMenu, HWND hWnd, bool is_top) {
       continue;
     }
 
-    if (info.fType & MFT_OWNERDRAW) {
+    if ((info.fType & MFT_OWNERDRAW) && config::current->context_menu.experimental_ownerdraw_support) {
       auto od = getBitmapFromOwnerDraw(&info, hWnd);
       if (od.width && od.height) {
         item.owner_draw = od;