diff --git a/source/blender/mblender/patches/MB_0012.h b/source/blender/mblender/patches/MB_0012.h
new file mode 100644
index 00000000000..a5de9533beb
--- /dev/null
+++ b/source/blender/mblender/patches/MB_0012.h
@@ -0,0 +1 @@
+/* Empty File */
diff --git a/source/blender/windowmanager/intern/wm_operators.cc b/source/blender/windowmanager/intern/wm_operators.cc
index 5b983c4d257..c499ded3ed0 100644
--- a/source/blender/windowmanager/intern/wm_operators.cc
+++ b/source/blender/windowmanager/intern/wm_operators.cc
@@ -3898,6 +3898,7 @@ void wm_operatortypes_register()
   WM_operatortype_append(WM_OT_operator_defaults);
   WM_operatortype_append(WM_OT_splash);
   WM_operatortype_append(WM_OT_splash_about);
+  WM_operatortype_append(WM_OT_splash_custom);
   WM_operatortype_append(WM_OT_search_menu);
   WM_operatortype_append(WM_OT_search_operator);
   WM_operatortype_append(WM_OT_search_single_menu);
diff --git a/source/blender/windowmanager/intern/wm_splash_screen.cc b/source/blender/windowmanager/intern/wm_splash_screen.cc
index 96eda527605..04e25730b69 100644
--- a/source/blender/windowmanager/intern/wm_splash_screen.cc
+++ b/source/blender/windowmanager/intern/wm_splash_screen.cc
@@ -49,6 +49,9 @@
 #include "WM_api.hh"
 #include "WM_types.hh"
 
+#include "RNA_define.hh"
+#include "RNA_access.hh"
+
 #include "wm.hh"
 
 static void wm_block_close(bContext *C, void *arg_block, void * /*arg*/)
@@ -336,3 +339,66 @@ void WM_OT_splash_about(wmOperatorType *ot)
   ot->invoke = wm_about_invoke;
   ot->poll = WM_operator_winactive;
 }
+
+static uiBlock *wm_block_create_custom_splash(bContext *C, ARegion *region, void *arg) {
+
+  char *menutype_str = (char*) arg;
+
+  const uiStyle *style = UI_style_get_dpi();
+  const int text_points_max = MAX2(style->widget.points, style->widgetlabel.points);
+  const int dialog_width = text_points_max * 42 * UI_SCALE_FAC;
+
+  uiBlock *block = UI_block_begin(C, region, "about", UI_EMBOSS);
+
+  UI_block_flag_enable(block, UI_BLOCK_KEEP_OPEN | UI_BLOCK_LOOP | UI_BLOCK_NO_WIN_CLIP);
+  UI_block_theme_style_set(block, UI_BLOCK_THEME_STYLE_POPUP);
+
+  uiLayout *layout = UI_block_layout(
+      block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL, 0, 0, dialog_width, 0, 0, style);
+
+  uiLayout *col = uiLayoutColumn(layout, true);
+
+  MenuType *mt = WM_menutype_find(menutype_str, true);
+  if (mt) {
+    UI_menutype_draw(C, mt, col);
+  } else {
+    CLOG_ERROR(WM_LOG_OPERATORS, "cannot find WM menutype '%s'", menutype_str);
+  }
+
+  UI_block_bounds_set_centered(block, 22 * UI_SCALE_FAC);
+
+  return block;
+}
+
+static int wm_about_custom_exec(bContext *C, wmOperator *op)
+{
+  char *menutype_str = MEM_cnew_array<char>(100, __func__);
+  *menutype_str = '\0';
+
+  if (RNA_struct_property_is_set(op->ptr, "menutype")) {
+    RNA_string_get(op->ptr, "menutype", menutype_str);
+  }
+
+  UI_popup_block_invoke(C, wm_block_create_custom_splash, menutype_str, MEM_freeN);
+
+  return OPERATOR_FINISHED;
+}
+
+static int wm_about_custom_invoke(bContext *C, wmOperator *op , const wmEvent * /*event*/) {
+  return op->type->exec(C, op);
+}
+
+void WM_OT_splash_custom(wmOperatorType *ot)
+{
+  PropertyRNA *prop;
+  prop = RNA_def_string(ot->srna, "menutype", "MT_", 100, "", "MenuType class name");
+
+  ot->name = "Custom Splash";
+  ot->idname = "WM_OT_splash_custom";
+  ot->description = "Open a splash window with some custom information";
+
+  ot->exec = wm_about_custom_exec;
+  ot->invoke = wm_about_custom_invoke;
+  ot->poll = WM_operator_winactive;
+
+}
diff --git a/source/blender/windowmanager/wm.hh b/source/blender/windowmanager/wm.hh
index 98754fa821f..665413d651f 100644
--- a/source/blender/windowmanager/wm.hh
+++ b/source/blender/windowmanager/wm.hh
@@ -98,6 +98,7 @@ void wm_autosave_delete();
 
 void WM_OT_splash(wmOperatorType *ot);
 void WM_OT_splash_about(wmOperatorType *ot);
+void WM_OT_splash_custom(wmOperatorType *ot);
 
 /* `wm_stereo.cc` */