Effect Selection When Color Changed

[BryanCLieberman]

So I am trying to make it so my entity below updates to my null option for 103 anytime 123 is changed. I have read through the read me and cannot figure out how to make this happen.

    name: Night Light
    icon: "mdi:lightbulb"
    dps:
      - id: 20
        type: boolean
        name: switch
      - id: 123
        type: hex
        name: rgbhsv
        color_mode: hs
        optional: true
        format:
          - name: h
            bytes: 2
            range:
              min: 0
              max: 360
          - name: s
            bytes: 2
            range:
              min: 0
              max: 1000
          - name: dummy_v
            bytes: 2
            range:
              min: 1000
              max: 1000
        mapping:
      - id: 102
        type: integer
        name: brightness
        range:
          min: 1
          max: 30
      - id: 103
        name: effect
        type: base64
        optional: true
        force: true
        mapping:
          - dps_val: null
            value: Select Effect
          - dps_val: AgE=
            value: Rainbow Wave
          - dps_val: AQI=
            value: Color Cycle
          - dps_val: AQE=
            value: Rainbow Snap
          - dps_val: AgY=
            value: Campfire Glow
          - dps_val: AgU=
            value: Aurora
          - dps_val: AgQ=
            value: Horizon Sweep
          - dps_val: AgM=
            value: Ocean Pulse
          - dps_val: AgI=
            value: Ocean Waves