I have a Roku channel with a roGridScreen that uses the two-row-flat-landscape-custom grid style introduced in Firmware 3.0. This style displays ShortDescriptionLine1 and ShortDescriptionLine2 below the poster image, in addition to the description bubble common to other grid screen styles.
I'm trying to theme this screen with a light background and cannot find a way to change the color of the ShortDescription text. GridScreenListName seemed like the most likely option, but it doesn't do what I'm looking for. All other styles in the roAppManager object are applying properly across the channel.
Is it possible to change the color of the ShortDescription text and if so, where is it documented? I've been unable to find any reference in the roAppManager documentation.