label = "string";
Specifies the text displayed within the tile. Possible value is a quoted string (default: a blank string, " "). The placement of label text is tile-specific.
The label attribute can specify a mnemonic character for the tile. The mnemonic is underlined in the tile's label.
Any character in a label string that is preceded by an ampersand (&) becomes the mnemonic. The character doesn't have to be unique to the dialog box. If more than one tile has the same mnemonic, the user presses that key to cycle through the tiles sequentially.
Mnemonics change focus but do not select a tile. If the user specifies a mnemonic key for a tile that contains a group of items, such as a cluster or a list box, the focus is put on the first item in the tile that is a tab stop. Any active tile is a tab stop unless its is_tab_stop attribute is set to false.
