I recently bought some 3-way and some single pole Kasa switches. The 3-way had green and white wires and screws for the travelers and load like standard non Wi-Fi switches have. It makes it really nice that you do not have to use extra screw nuts since space in the blue boxes is tight with the bigger switches. But the single pole was the old setup with red, black, green and white wires. These are not good for me due to space limitations. How can I tell which switches have the new setup and which have the old ones?