I am trying to set up TP Link Kasa Smart Wifi bulb multicolor KL125 with Google home. The OpenHab documentation indicates that switching, brightness and color is done using the “color”channel. The only available channels for the KL125 bulb are Color and Color Temperature.
Looking at the Google Assistant metadata available, we have lightColor and lightBrightness.
If I assign the Google Assistant metadata lightColor to the KL125 bulb Color channel, I get an error in the Google Assistant app and there is no slider present in the Google Assistant app to control the brightness of the bulb.
It seems I need to assign the Google Assistant metadata tags lightBrightness and lightColor to the bulb but there seems to be no way to do this.