493 × 58 Top banner used on most dialogs that don't use background. Will be used as WixUIBannerBmp
32 x 32 Exclamation icon on the WaitForCostingDlg dialog. Will be used as WixUIExclamationIco
32 x 32 Information icon on the cancel and error dialogs. Will be used as WixUIInfoIco
16 x 16 "New folder" icon for the "browse" dialog. Will be used as WixUINewIco
16 x 16 "Up" icon for the "browse" dialog. Will be used as WixUIUpIco
493 x 312 Background bitmap used on the welcome and completion dialogs. Will be used as WixUIDialogBmp