Add donate button to project manager

- Move the `Remove Missing` button with the rest of the actions available.
- Add `ref` to existing donate link in the Help menu

editor/editor_node.cpp

@@ -3536,7 +3536,7 @@ void EditorNode::_menu_option_confirm(int p_option, bool p_confirmed) {
 			about->popup_centered(Size2(780, 500) * EDSCALE);
 		} break;
 		case HELP_SUPPORT_GODOT_DEVELOPMENT: {
-			OS::get_singleton()->shell_open("https://fund.godotengine.org");
+			OS::get_singleton()->shell_open("https://fund.godotengine.org/?ref=help_menu");
 		} break;
 	}
 }

editor/project_manager/project_manager.cpp

@@ -269,6 +269,7 @@ void ProjectManager::_update_theme(bool p_skip_creation) {
 			erase_btn->set_button_icon(get_editor_theme_icon("Remove"));
 			erase_missing_btn->set_button_icon(get_editor_theme_icon("Clear"));
 			create_tag_btn->set_button_icon(get_editor_theme_icon("Add"));
+			donate_btn->set_button_icon(get_editor_theme_icon("Heart"));
 
 			tag_error->add_theme_color_override(SceneStringName(font_color), get_theme_color("error_color", EditorStringName(Editor)));
 			tag_edit_error->add_theme_color_override(SceneStringName(font_color), get_theme_color("error_color", EditorStringName(Editor)));
@@ -1287,6 +1288,10 @@ void ProjectManager::_titlebar_resized() {
 	}
 }
 
+void ProjectManager::_open_donate_page() {
+	OS::get_singleton()->shell_open("https://fund.godotengine.org/?ref=project_manager");
+}
+
 // Object methods.
 
 ProjectManager::ProjectManager() {
@@ -1658,14 +1663,19 @@ ProjectManager::ProjectManager() {
 			erase_btn->connect(SceneStringName(pressed), callable_mp(this, &ProjectManager::_erase_project));
 			project_list_sidebar->add_child(erase_btn);
 
-			Control *filler = memnew(Control);
-			filler->set_v_size_flags(Control::SIZE_EXPAND_FILL);
-			project_list_sidebar->add_child(filler);
-
 			erase_missing_btn = memnew(Button);
 			erase_missing_btn->set_text(TTRC("Remove Missing"));
 			erase_missing_btn->connect(SceneStringName(pressed), callable_mp(this, &ProjectManager::_erase_missing_projects));
 			project_list_sidebar->add_child(erase_missing_btn);
+
+			Control *filler = memnew(Control);
+			filler->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+			project_list_sidebar->add_child(filler);
+
+			donate_btn = memnew(Button);
+			donate_btn->set_text(TTRC("Donate"));
+			donate_btn->connect(SceneStringName(pressed), callable_mp(this, &ProjectManager::_open_donate_page));
+			project_list_sidebar->add_child(donate_btn);
 		}
 	}
 

editor/project_manager/project_manager.h

@@ -163,6 +163,7 @@ class ProjectManager : public Control {
 	Button *show_in_fm_btn = nullptr;
 	Button *erase_btn = nullptr;
 	Button *erase_missing_btn = nullptr;
+	Button *donate_btn = nullptr;
 
 	HBoxContainer *open_btn_container = nullptr;
 	PopupMenu *open_options_popup = nullptr;
@@ -203,6 +204,7 @@ class ProjectManager : public Control {
 	void _update_project_buttons();
 	void _open_options_popup();
 	void _open_recovery_mode_ask(bool manual = false);
+	void _open_donate_page();
 
 	void _on_project_created(const String &dir, bool edit);
 	void _on_project_duplicated(const String &p_original_path, const String &p_duplicate_path, bool p_edit);