image-thumbnail-chooser {
    --preview-size: 128px;
}

.image-thumbnail-chooser-grid {
    display: grid;
    grid-gap: 1em;
    grid-template-columns: repeat(auto-fit, minmax(var(--preview-size), 1fr));
    justify-items: center;
    padding: 10px;
    background-color: lightgray;
}

.image-thumbnail-chooser-grid > div {
    width: var(--preview-size);
    height: var(--preview-size);
    margin-bottom: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-thumbnail-chooser-grid > div > img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
}

.image-thumbnail-chooser-grid > div[role=radio]:hover {
    outline: 2px #2b689c solid;
}

.image-thumbnail-chooser-grid > div[role=radio][aria-checked="true"]:hover {
    outline: none;
}

.image-thumbnail-chooser-grid > div[role=radio][aria-checked="true"] {
    border: 5px green solid;
}

.force-flex-wrap {
    flex-basis: 100%;
}

image-thumbnail-chooser > div > .disabled {
    background-color: lightgray;
    color: inherit;
    filter: grayscale(100%);
}