Is it possible to read RGBW values from LED strip for use in Lambas?

I have flashed a Magic Home RGBW Led controller with ESPHome and all is working well.

I have started adding effects to the configuration - such as Strobe/Fast/Red, Strobe/Fast/Blue etc. etc. This list starts to get very long very quickly.

Is it possible to read to existing rgbw settings in a lambda to create a more generic effect - so it would be Strobe/Fast with existing colour settings?

I can see that you can set rgbw values using call.set_rgb(1.0, 1.0, 1.0) but can I read them?