Possible to hide shortcut buttons based on conditions?

[0xskynet]

Trying to hide the buttons based on a state (eg. states.media_player.my_rest_2nd_gen_media_player.state == 'playing' ). Possible with mini media player ? I need to implement some custom sound upon starting so i can't use built in power button.

type: custom:mini-media-player
entity: media_player.my_rest_2nd_gen_media_player
group: false
volume_stateless: false
toggle_power: false
artwork: cover-fit
source: full
power_buttons:
  power:
    type: script
    id: script.rest_media_stop
shortcuts:
  buttons:
    - icon: mdi:stop
      type: script
      id: script.rest_media_stop
    - icon: mdi:play
      type: script
      id: script.rest_set_sound_mode
      data:
        sound_mode: WhiteNoise

[Scepticalist]

Card-Mod should allow you to do this?

[ColtonYYZ]

Yes:

    card_mod:
      style: |
        :host {
        {% if is_state("media_player.colton_s_echo_show", "off") %}
          --mush-icon-symbol-size: 0.0em;
        {% else %}
          --mush-icon-symbol-size: 1.0em;
        {% endif %}
        }