[Advertisement verbiage removed] To improve the site for Round Two (to be judged at SXSW-Interactive) we have a punch list of items the judges found lacking. Among them:
Alternate Style Sheets (10 points). Provide at least two style sheets in addition to the default that can be conveniently selected by users, for example, to change font size, contrast, color schemes, printing, or displaying on small devices. Any page where the layout fails with any alternate style sheet or where the selection process fails is an error.
HeadwayThemes confirmed that they do not have any facility for such alternate style sheets (though the theme itself is is highly responsive), but I thought it worthwhile to ask here if you can please suggest a WP plugin or a another way to allow for the above customization.
We are currently using HeadwayThemes v 3.3. and hesitate to upgrade, lest we lose the theme customization that was added to enable the new technology of ARIA landmarks and roles.