From 106 you should be able to use something like this:
- entity: binary_sensor.tasmota_update_available
state_color: true
style: |
:host {
--paper-item-icon-active-color: rgb(255, 223, 0);
}
Or even this:
- entity: sensor.artisan_software_version
style: |
:host {
--paper-item-icon-color:
{% if states(config.entity) != 'v2.1.2' %}
rgb(255, 223, 0)
{% else %}
var(--disabled-text-color)
{% endif %}
;
}
Might take a bit of mucking around to see what your theme is using there…