Custom button card - flash while item changing state (not when it's state is changed)

Configuration Frontend
1

Hi all,

I use custom:button-card to control groups of lights, but when I click it from on>off, or off>on, it does not change colour until all entities have updated. So it looks like nothing is happening.
How can I set it to get the card to either flash in this state, or flash for 5 seconds upon click.
I’ve searched all over and can’t find a solution, I’ve also tried putting in styles on the click but this doesn’t work.
thx

type: custom:button-card
entity: light.flood_lights
name: Flood Lights
icon: mdi:light-flood-down
color: default
color_type: card
layout: icon_name
size: 30px
state:
  - value: 'off'
    icon: mdi:light-flood-down
    color: grey
  - value: 'on'
    icon: mdi:light-flood-down
    color: '#ffcc00'
tap_action:
  action: toggle
hold_action:
  action: more-info
styles:
  card:
    - font-size: 18px
    - font-weight: bold
    - height: 60px
  name:
    - font-weight: bold
    - font-size: 18px