Adjust size of color control in mushroom light card

Hello everyone,

I created a pop-up bubble card (see picture & code below). I would like to adjust the size of the color control at the bottom to the same size as the slider at the top. Could someone please help me to adjust the code respectively? The part for the color control is at the bottom of the code.

Greetings

type: vertical-stack
cards:
  - type: custom:bubble-card
    card_type: pop-up
    hash: "#Stripe_Schlafen"
    icon: mdi:led-strip
    show_header: true
    name: LED Stripe
    force_icon: false
    show_state: false
  - type: grid
    columns: 1
    square: false
    cards:
      - type: custom:gap-card
        height: 15
      - type: custom:bubble-card
        card_type: separator
        name: Brightness
        icon: mdi:brightness-6
        styles: |
          .separator-container div:last-child {
            opacity: 1!important;
          }
      - type: custom:big-slider-card
        entity: light.rgbw_stripe_szi_eltern
        name: Deckenlampe
        attribute: brightness
        transition: 0.3
        height: 70
        background_color: "linear-gradient(90deg, #D3D3D3, #F5F5F5)"
        icon_color: black
        icon: mdi:led-strip-variant
        show_percentage: true
        tap_action:
          action: toggle
        card_mod:
          style: |
            ha-card {   
              border-radius: 20px !important;
              border: none !important;  # Removes any border around the card
            }
            {% if is_state('light.rgbw_stripe_szi_eltern', 'on') %}
              #name{
                font-size:14px !important;
                font-weight:300 !important;
                opacity:0.7 !important;
              }
              #percentage{
                font-size:16px !important;
                font-weight:500 !important;
                color: black !important;
              }
              #slider{
                opacity: 1 !important;
                background: linear-gradient(145deg, rgba(251,192,217,1) 0%, rgba(255,212,193,1) 100%) !important;
                border-radius: 20px !important;  # Makes the slider ends round
                height: 40px !important;  # Adjust the slider's height
              }
              .slider-thumb {
                height: 40px !important;  # Customize the thumb size
                width: 40px !important;
                border-radius: 50% !important;  # Make the thumb round
              }
            {% else %}
              #container{
                background: black !important;
              }
              #name{
                color: white !important;
                font-size:14px !important;
                font-weight:300 !important;
                opacity:0.7 !important;
              }
              #percentage{
                font-size:16px !important;
                font-weight:500 !important;
                color: white !important;
              }
              #icon{
                opacity: 1 !important;
                filter: none !important;
                color: white !important;
              }
            {% endif %}
      - type: custom:gap-card
        height: 20
      - type: custom:bubble-card
        card_type: separator
        name: Color Picker
        icon: mdi:border-color
        styles: |
          .separator-container div:last-child {
            opacity: 1!important;
          }
      - type: custom:mushroom-light-card
        entity: light.rgbw_stripe_szi_eltern
        show_brightness_control: false
        show_color_control: true
        icon_type: none
        show_color_temp_control: false
        name: " "
        primary_info: none
        secondary_info: none
        card_mod:
          style: |
            ha-card {   
              border-radius: 25px !important;
              border: none !important;  # Removes any border around the card
            }