Hello @BorrahDanikls 

Thank you for reaching out to the community and sharing the feature request.

The workaround is to use the Schedule feature , it can change the bulb to a color at scheduled time. 

How to setup schedule, away mode and timer of TP-Link Smart Plug/Switch in Kasa APP

I'm afraid the kasa bulb does not own alternate color feature so far, you may also take a look like some kasa smart light strips, the' Effect' feature on the smart light strip can do some awesome light effects including alternating the colors.  How to set Light Effects on KL430

Hope the children can have fun :D