- u -

• underlined : Font
• unknown : RelativeCoordinate::StandardStrings
• UnknownFormat : Image
• UnknownOS : SystemStats
• UpDownLeftRightResizeCursor : MouseCursor
• UpDownResizeCursor : MouseCursor
• upright : Desktop
• upsideDown : Desktop
• urlKeyboard : TextInputTarget
• useHiddenFile : TemporaryFile
• userApplicationDataDirectory : File
• userCancelledSave : FileBasedDocument
• userDesktopDirectory : File
• userDocumentsDirectory : File
• userHomeDirectory : File
• userMoviesDirectory : File
• userMusicDirectory : File
• userPicturesDirectory : File
• useTreeView : FileBrowserComponent