public void StyleSheetChange(string sheetName)
{
IStyleSheet styleSheet = null;
var styleSheets = Registry.Pooled <StyleSheets> ();
if (!styleSheets.TryGetValue(sheetName, out styleSheet))
{
var style = StyleSheet.CreateStyleWithSystemSettings();
styleSheet = new StyleSheet(sheetName, style);
styleSheets.Add(styleSheet.Name, styleSheet);
}
var currentDisplay = this.CurrentDisplay;
if (currentDisplay != null)
{
currentDisplay.StyleSheet = styleSheet;
currentDisplay.BackendRenderer.Render();
CurrentStyleSheet = styleSheet;
}
}