Style of tileset

Hi, I have problem :slight_smile:

1. I load tileset `Tileset with discrete LODs` from https://github.com/AnalyticalGraphicsInc/3d-tiles-samples/tree/master/tilesets/TilesetWithDiscreteLOD

and I want to change color of dragon.
I declare styles
var defaultStyle = new Cesium.Cesium3DTileStyle({
  color : "color('red')",
  show : true
});
and add styles to tileset
tileset.style = defaultStyle;

and this didn't work :(.
However when I load `New York` tileset, the same code works. Someone can me explain it?

Demo NY in cesium https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/index.html?src=3D%20Tiles%20Feature%20Picking.html&label=Showcases

I load this url: ‘https://beta.cesium.com/api/assets/1461?access_token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJkYWJmM2MzNS02OWM5LTQ3OWItYjEyYS0xZmNlODM5ZDNkMTYiLCJpZCI6NDQsImFzc2V0cyI6WzE0NjFdLCJpYXQiOjE0OTkyNjQ3NDN9.vuR75SqPDKcggvUrG_vpx0Av02jdiAxnnB1fNf-9f7s

cesium version: "1.38.0"

The styling language only works if a tile has features to style, and that particular tileset doesn’t have any. Technically the tileset could be created so that each tile has one feature, but that just isn’t done at the moment.