LANCommander/LANCommander.Launcher/UI/Components/InstallDialog/InstallDialog.razor.scss

.install-dialog {

    &-addons-selector {
        .ant-collapse-header {
            padding: 6px 8px;
        }

        .ant-collapse-content {
            border: 0;
        }
    }

    &-addons-selector + &-directory-selector {
        margin-top: 16px;
    }
}