Traffic-light state machine
Red → Green → Yellow → Red cycle.
Rendering…
Make it your own.
R: oval "Red" fill 0xfee2e2
arrow ">"
G: oval "Green" fill 0xdcfce7
arrow ">"
Y: oval "Yellow" fill 0xfef3c7
arrow ">" from Y.east then down then left to R.east "timeout"