Tileset colorising have some odd colors?

Hi, me again,

Getting some odd colors when 3DTileset colorising. The attached image gives you the run-down; there’s basically two values for the property, and they set the color of the Feature to either white or black. However, the white is rendered blue. What could be causing this? I’ve played around with various things, from opacity to globe.lighting and so on, can’t seem to hit the problem. Any obvious reasons why the colors towards the white might be off like this?

I noticed the Sandcastle example with building materials also looks a bit, uh, off? Like the colors are washed out? White is kinda middle-gray? Indian red is dark red? Could this be related? Cesium versions related?

I’ve searched around and can’t really find anything obvious, so any help or hint is much appreciated.