thumbBackgroundAlpha [read-write]
ThumbGrid Version: ThumbGrid 1 and 2
Language Version: ActionScript 3.0
Player Version: Flash Player 9.0.0.0
The alpha transparency of each thumbnail's background.
Acceptable values are between 0 and 1.
The default value is 1.
public function get thumbBackgroundAlpha():Number
public function set thumbBackgroundAlpha(value:Number):void
The following examples changes all thumbnail backgrounds to half transparency.
my_tg.thumbBackgroundAlpha = 0.5;