pleroma-fe/src/components/settings_modal/tabs/appearance_tab.scss

.appearance-tab {
  h3 {
    border: none
  }

  .palette,
  .theme-notice {
    padding: 0.5em;
  }

  .theme-name {
    font-weight: 900;
    padding-bottom: 0.5em;
  }

  input[type="file"] {
    padding: 0.25em;
    height: auto;
  }

  .banner-background {
    display: flex;
    gap: 1em;
    flex-wrap: wrap;

    h4 {
      margin: 0;
    }
  }

  .banner-background-input {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5em;

    .custom-bg-control {
      display: grid;
      gap: 0.5em;
      grid-template-columns: 1fr 1fr;
    }
  }

  .banner-background-preview {
    display: flex;
    max-width: 100%;
    width: 300px;
    position: relative;

    img {
      width: 100%;
    }

    .fun-monitor {
      position: relative;
      pointer-events: none;
      display: flex;
      flex-direction: column;
      align-items: center;

      * {
        line-height: 1;
      }

      &-display-bezel,
      &-display-screen {
        aspect-ratio: 16 / 9;
        width: 16em;
      }
         
      img {
        object-fit: cover;
      }

      .wallpaper {
        position: absolute;
        inset: 0;
        background-color: var(--wallpaper);
      }

      &-display-uploading {
        position: absolute;
        inset: 0;
        z-index: 1;
        display: flex;
        place-items: center;
        place-content: center;
        background-color: rgb(0 0 0 / 60%);
        font-size: 4em;
      }

      &-display-screen {
        padding: 0;
        overflow: hidden;
        position: relative;

        &-overlay {
          background: transparent;
          position: absolute;
          inset: 0;
          z-index: 2;
        }

        &-image {
          aspect-ratio: 16 / 9
        }
      }

      &-display-bezel {
        padding: 1em;
        margin: 0;
        order: 1;
        z-index: 3;
      }

      &-neck {
        width: 5em;
        height: 3em;
        margin-top: -1em;
        margin-bottom: -0.5em;
        order: 2
      }

      &-stand {
        width: 8em;
        height: 1em;
        order: 3;
        z-index: 1
      }
    }
  }

  .palettes-container {
    height: 15em;
    overflow: hidden auto;
    scrollbar-gutter: stable;
    border-radius: var(--roundness);
    border: 1px solid var(--border);
    margin-bottom: 0.5em;
    margin-top: 0;
  }

  .palettes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-gap: 0.5em;
    padding: 0.5em;
    width: 100%;

    h5 {
      grid-column: 1 / span 2;
      margin-bottom: 0;
    }
  }

  .palette-entry {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.5em;
    height: max-content;

    .palette-label {
      height: auto;

      label {
        text-align: center;
      }
    }

    .palette-square {
      flex: 0 0 auto;
      display: inline-block;
      min-width: 1em;
      min-height: 1em;
    }
  }

  .column-settings {
    display: flex;
    justify-content: space-evenly;
    flex-wrap: wrap;
  }

  .column-settings .size-label {
    display: block;
    margin-bottom: 0.5em;
    margin-top: 0.5em;
  }

  .modal-view.-mobile & {
    .palettes {
      grid-template-columns: 1fr;
    }

    .palette-entry {
      grid-column: 1;
      justify-content: center;
    }

    .palette-label {
      line-height: 1.5em;
      margin-top: 0.5em;
    }
  }

  .palette-preview {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 1em 1em;
    margin: 0.5em 0;
  }

  .theme-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    margin: -0.5em 0;
    height: 25em;
    overflow: hidden auto;
    scrollbar-gutter: stable;
    border-radius: var(--roundness);
    border: 1px solid var(--border);
    padding: 0;
    margin-bottom: 1em;

    .theme-preview {
      font-size: 1rem; // fix for firefox
      width: 14rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      margin: 0.5em;

      &.placeholder {
        opacity: 0.2;
      }

      .theme-preview-container {
        pointer-events: none;
        zoom: 0.5;
        border: none;
        border-radius: var(--roundness);
        text-align: left;
      }
    }
  }
}