Climate card child lock button icon to change modes?

[evlo]

How can i change the mode switch icon from child lock icon to something else?
Also would it be possible to remove the icon completely for heater? It does only have heating mode :D

It is shown even in the readme https://github.com/piitaya/lovelace-mushroom/blob/main/docs/cards/climate.md Now i'm kinda confus, maybe there is some design logic behind it that i don't see?

Confusion intensifies

https://icon-sets.iconify.design/mdi/thermostat/
ok, i will see myself out, now i see it, though still would like to be able to change it if possible

also feel free to laugh :D