Currently it's tied to the "Frontlight flash on new block" setting, also make sure "Disable all LEDs effects" is off.
I should probably make it configurable separately from flashing on new block...
Discussion
Weird I changed a setting and now I'm not seeing zaps pop up when they happen. Anything I should change?
What relay are you connected to with the clock? By default it’s set to primal but you might need to change it to getalby relay