Mushroom/Lovelace shadows

I have been working on my interface for some time, I’ve gotten it to the layout I like, but I have having a few issues with shadows as seen below

Everything looks fine, except for each item/card has a very faint shadow and I can’t figure out what is causing it, below is an example of the card

type: custom:stack-in-card
title: Living Room
mode: vertical
cards:
  - type: custom:layout-card
    layout_type: masonry
    layout:
      width: 285
      max_cols: 10
    cards:
      - type: custom:vertical-stack-in-card
        cards:
          - type: custom:gap-card
            height: 5
          - type: horizontal-stack
            cards:
              - type: picture
                image: /local/images/living_iso.png
              - type: custom:button-card
                layout: icon_name_state2nd
                show_icon: true
                show_state: true
                styles:
                  grid:
                    - grid-template-columns: 50px auto
                  icon:
                    - padding: 15px 10px
                    - height: 30px
                    - width: 30px
                  card:
                    - '--ha-card-background': rgba(0, 0, 0, 0.0)
                    - '--ha-card-box-shadow': none
                  state:
                    - padding: 0px 0px
                    - justify-self: start
                    - font-family: Roboto, sans-serif
                    - font-size: 15px
                  name:
                    - padding: 0px 0px
                    - justify-self: start
                    - color: var(--secondary-text-color)
                entity: sensor.room_1_temperature
                name: Temperature
          - type: custom:gap-card
            height: 10
  - type: custom:layout-card
    layout_type: masonry
    layout:
      width: 230
    cards:
      - type: horizontal-stack
        cards:
          - type: custom:mushroom-light-card
            entity: light.living_room_ceiling_bulb_native
            icon_color: cyan
            icon: mdi:ceiling-light
            fill_container: false
            layout: vertical
            name: Ceiling
            show_brightness_control: true
            collapsible_controls: true
          - type: custom:mushroom-light-card
            entity: light.mood_1
            icon_color: cyan
            icon: mdi:car-parking-lights
            fill_container: false
            layout: vertical
            name: Mood
            show_brightness_control: true
            collapsible_controls: true
          - type: custom:mushroom-light-card
            entity: light.media_unit
            icon_color: cyan
            icon: mdi:car-parking-lights
            fill_container: false
            layout: vertical
            name: Media
            show_brightness_control: true
            collapsible_controls: true
      - type: entities
        entities:
          - type: section
      - type: horizontal-stack
        cards:
          - type: custom:mushroom-entity-card
            entity: binary_sensor.living_room_motion_occupancy
            icon_color: cyan
            fill_container: false
            layout: vertical
            name: Motion
          - type: custom:mushroom-entity-card
            entity: input_boolean.lr_ignore_sensor
            icon_color: cyan
            fill_container: false
            layout: vertical
            name: Disable Motion
            tap_action:
              action: call-service
              service: input_boolean.toggle
              data: {}
              target:
                entity_id: input_boolean.lr_ignore_sensor
      - type: horizontal-stack
        cards:
          - type: custom:mushroom-media-player-card
            entity: media_player.living_room_tv
            icon_color: cyan
            icon: mdi:television-classic
            name: TV
            layout: vertical
            use_media_info: true
            media_controls:
              - on_off
              - play_pause_stop
            collapsible_controls: true
          - type: custom:mushroom-media-player-card
            entity: media_player.emby_55oled705_12
            icon_color: cyan
            icon: mdi:movie-open-outline
            name: TV
            layout: vertical
            use_media_info: true
            media_controls:
              - on_off
              - play_pause_stop
            collapsible_controls: true
      - type: entities
        entities:
          - type: section
  - type: custom:layout-card
    layout_type: masonry
    layout:
      width: 230
    cards:
      - type: custom:mushroom-climate-card
        entity: climate.room_1
        layout: vertical
        fill_container: false
        show_temperature_control: true
        collapsible_controls: true
        name: Heating
      - type: horizontal-stack
        margin: true
        cards:
          - type: custom:mini-graph-card
            entities:
              - sensor.room_1_temperature
            name: Temperature
            icon: mdi:home-thermometer
            line_width: 8
            font_size: 50
            hours_to_show: 48
            color_thresholds:
              - value: 10
                color: '#9e1f1c'
              - value: 15
                color: '#914516'
              - value: 22
                color: '#0c8241'
              - value: 26
                color: '#9e1f1c'
          - type: custom:mini-graph-card
            entities:
              - sensor.room_1_humidity
            name: Humidity
            line_width: 8
            font_size: 50
            hours_to_show: 48
            color_thresholds:
              - value: 10
                color: '#a62317'
              - value: 35
                color: '#a62317'
              - value: 50
                color: '#0c8241'
              - value: 60
                color: '#9e1f1c'
      - type: horizontal-stack
        margin: true
        cards:
          - type: custom:slider-button-card
            entity: cover.living_room_main_blind
            slider:
              direction: left-right
              background: gradient
              use_state_color: true
              use_percentage_bg_opacity: false
              show_track: false
              toggle_on_click: false
              force_square: false
            name: Main Blind
            show_state: true
            compact: true
            icon:
              show: true
              use_state_color: true
              tap_action:
                action: more-info
            action_button:
              mode: toggle
              icon: mdi:power
              show: true
              show_spinner: true
              tap_action:
                action: toggle

I’ve tried messing around with the card-mod setting background styles to transparent but doesn’t seem to work.

Does anyone have any ideas?

BTW I am using the theme synthwave