Defines how per-feature colors set from the Cesium API or declarative styling blend with the source colors from
the original feature, e.g. glTF material or per-point color in the tile.
    
    
    
    
    
    
    
    
    
    
    
    
When REPLACE or MIX are used and the source color is a glTF material, the technique must assign the
_3DTILESDIFFUSE semantic to the diffuse color parameter. Otherwise only HIGHLIGHT is supported.
"techniques": {
  "technique0": {
    "parameters": {
      "diffuse": {
        "semantic": "_3DTILESDIFFUSE",
        "type": 35666
      }
    }
  }
}
Members
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    Multiplies the source color by the feature color.
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    Blends the source color and feature color together.
- 
    
    Replaces the source color with the feature color.
