Heat Button cant be renamed or Icon

[comet424]

Describe the bug
A clear and concise description of what the bug is.
you can not change the word "Heat" to anything else
icon doesnt change either

To Reproduce
control:
hvac:
some_mode: false
another_mode: false
"off":
name: "Off"
icon: mdi:power
"on":
name: "Furnace On"
icon: mdi:power

Expected behavior
i should be able to change the word "HEAT" to "Furnace On" but you cant.. you can change "off:" but you cant change "on:"

# The least ammount of code possible to reproduce my error
type: 'custom:simple-thermostat'
entity: ...

Screenshots
Always include a screenshot

Browser

• OS: Mac/Win/iOS/Android
• Browser: Chrome/Firefox/Mobile app?
• Simple Thermostat version from browser console:
• Home Assistant version:
• All browsers on Windows and Ubuntu
• IE, Chrome,
• v2.5.0 of simple thermosate
• HA 2024.12.4

[lmagyar]

Use "heat" instead of "on", because the thermostat state is heat, when it is "on" ie. enabled (whether the switch is on, that is in an attribute, different story).

type: custom:simple-thermostat
entity: climate.moms_furnace
layout:
  mode:
    headings: false
    names: true
    icons: true
control:
  hvac:
    some_mode: false
    another_mode: false
    "off":
      name: Furnace Off
      icon: mdi:power-off
    heat:
      name: Furnace On
      icon: mdi:power
  preset:
    away:
      name: NOT HOME
    none:
      name: HOME