core/resources/src/mediawiki.special.apisandbox/apisandbox.js:
  104  					ok = ok || suppressErrors;
  105  					that.setIcon( ok ? null : 'alert' );
  106: 					that.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
  107  				} );
  108  			}
  ...
  186  				var ok = this.getApiValue() !== undefined || suppressErrors;
  187  				this.setIcon( ok ? null : 'alert' );
  188: 				this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
  189  				return $.Deferred().resolve( ok ).promise();
  190  			}
  ...
  234  
  235  				this.setIcon( ok ? null : 'alert' );
  236: 				this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
  237  				return $.Deferred().resolve( ok ).promise();
  238  			},
  ...
  292  				var ok = this.getValue() !== null || suppressErrors;
  293  				this.setIcon( ok ? null : 'alert' );
  294: 				this.setIconTitle( ok ? '' : mw.message( 'apisandbox-alert-field' ).plain() );
  295  				return $.Deferred().resolve( ok ).promise();
  296  			}
  ...
  469  					} );
  470  					widget.setIcon = widget.input.setIcon.bind( widget.input );
  471: 					widget.setIconTitle = widget.input.setIconTitle.bind( widget.input );
  472  					widget.getValidity = widget.input.getValidity.bind( widget.input );
  473  					widget.paramInfo = pi;
  ...
 1364  		this.outlineItem.setLabel( this.displayText );
 1365  		this.outlineItem.setIcon( this.apiIsValid || suppressErrors ? null : 'alert' );
 1366: 		this.outlineItem.setIconTitle(
 1367  			this.apiIsValid || suppressErrors ? '' : mw.message( 'apisandbox-alert-page' ).plain()
 1368  		);
 ....
 2009  				if ( that.getOutlineItem() ) {
 2010  					that.getOutlineItem().setIcon( that.apiIsValid || suppressErrors ? null : 'alert' );
 2011: 					that.getOutlineItem().setIconTitle(
 2012  						that.apiIsValid || suppressErrors ? '' : mw.message( 'apisandbox-alert-page' ).plain()
 2013  					);

extensions/CollaborationKit/modules/ext.CollaborationKit.list.ui.js:
  289  					framed: false,
  290  					icon: 'trash',
  291: 					iconTitle: mw.msg( 'collaborationkit-list-delete' )
  292  				} );
  293  
  ...
  298  						framed: false,
  299  						icon: 'move',
  300: 						iconTitle: mw.msg( 'collaborationkit-list-move' )
  301  					} );
  302  				}

extensions/ContentTranslation/modules/ui/widgets/mw.cx.ui.TitleOptionWidget.js:
   53  			languageIcon = new OO.ui.IconWidget( {
   54  				icon: 'language',
   55: 				iconTitle: mw.msg( 'cx-page-number-of-languages' )
   56  			} );
   57  			languageLabel = new OO.ui.LabelWidget( {

extensions/Kartographer/modules/dialog/dialog.js:
   64  						label: mw.msg( 'kartographer-sidebar-togglebutton' ),
   65  						icon: 'newWindow',
   66: 						iconTitle: mw.msg( 'kartographer-sidebar-togglebutton' )
   67  					} );
   68  					dialog.mapDetailsButton.connect( dialog, { change: 'toggleSideBar' } );

extensions/Kartographer/modules/wikivoyage/wikivoyage.js:
   80  				icon = new OO.ui.IconWidget( {
   81  					icon: 'linkExternal',
   82: 					iconTitle: mw.msg( 'kartographer-wv-warning-external-source-message' ),
   83  					classes: [ 'leaflet-control-layers-oo-ui-icon' ]
   84  				} );

extensions/LanguageTool/modules/ext.LanguageToolDialog.js:
   71  	this.sendButton = new OO.ui.ButtonWidget( {
   72  		icon: 'check',
   73: 		iconTitle: 'LanguageTool'
   74  	} );
   75  	this.previousButton = new OO.ui.ButtonWidget( {
   76  		icon: 'previous',
   77: 		iconTitle: ve.msg( 'visualeditor-find-and-replace-previous-button' ) + ' ' +
   78  			ve.ui.triggerRegistry.getMessages( 'findPrevious' ).join( ', ' )
   79  	} );
   80  	this.nextButton = new OO.ui.ButtonWidget( {
   81  		icon: 'next',
   82: 		iconTitle: ve.msg( 'visualeditor-find-and-replace-next-button' ) + ' ' +
   83  			ve.ui.triggerRegistry.getMessages( 'findNext' ).join( ', ' )
   84  	} );

extensions/PerformanceInspector/modules/collectors/ext.PerformanceInspector.modulescss.js:
  167  						label: mw.msg( 'performanceinspector-modules-css-show-details' ),
  168  						icon: 'info',
  169: 						iconTitle: mw.msg( 'performanceinspector-modules-css-show-details' )
  170  					} );
  171  				button.on( 'click', function () {

extensions/VisualEditor/modules/ve-mw/ui/pages/ve.ui.MWParameterPage.js:
   62  		this.statusIndicator
   63  			.setIndicator( 'required' )
   64: 			.setIndicatorTitle(
   65  				ve.msg( 'visualeditor-dialog-transclusion-required-parameter' )
   66  			);
   ..
   75  		this.statusIndicator
   76  			.setIndicator( 'alert' )
   77: 			.setIndicatorTitle(
   78  				ve.msg( 'visualeditor-dialog-transclusion-deprecated-parameter' )
   79  			);
   ..
  378  			this.outlineItem
  379  				.setIndicator( 'required' )
  380: 				.setIndicatorTitle(
  381  					ve.msg( 'visualeditor-dialog-transclusion-required-parameter' )
  382  				);
  ...
  385  			this.outlineItem
  386  				.setIndicator( 'alert' )
  387: 				.setIndicatorTitle(
  388  					ve.msg( 'visualeditor-dialog-transclusion-deprecated-parameter' )
  389  				);

extensions/WikibaseQualityConstraints/modules/gadget.js:
  212  	 * @param {jQuery} $container The container to which the button is appended.
  213  	 * @param {string} icon Identifier for an icon as provided by OOUI.
  214: 	 * @param {string} iconTitleMessageKey The message key of the title attribute of the icon.
  215  	 * @param {string} [flags] Optional custom flags the {@link OO.ui.PopupButtonWidget} can understand.
  216  	 */
  217: 	SELF.prototype._buildPopup = function ( $content, $container, icon, iconTitleMessageKey, flags /* = '' */ ) {
  218  		var widget = new OO.ui.PopupButtonWidget( {
  219  			icon: icon,
  220: 			iconTitle: mw.message( iconTitleMessageKey ).text(),
  221  			flags: flags || '',
  222  			framed: false,

extensions/WikidataPageBanner/includes/WikidataPageBanner.functions.php:
   50  				$iconName = Sanitizer::escapeClass( $iconname );
   51  				$iconUrl = Title::newFromText( $value );
   52: 				$iconTitleText = $iconName;
   53  				$finalIcon = [ 'url' => '#' ];
   54  				// reference article for icons provided and is valid, then add its link
   ..
   56  					$finalIcon['url'] = $iconUrl->getLocalURL();
   57  					// set icon title to title of referring article
   58: 					$iconTitleText = $iconUrl->getText();
   59  				}
   60  				$finalIcon['icon'] = $iconName;
   61: 				$finalIcon['title'] = $iconTitleText;
   62  				$iconsToAdd[] = $finalIcon;
   63  			}