ArrowLeftIcon based breadcrumb button

[jviksne]

Hello,

What is the proper way to add a left arrow based breadcrumb button for navigating to the list of entries in a Shopify Polaris/Remix application, the same way as in native Shopify GUI:

I tried something like this but it is not rendered unless I replace <Icon /> with some text:

<Page>

      <ui-title-bar title={qrCode.id ? "Edit item" : "Create new item"}>

        <button variant="breadcrumb" onClick={() => navigate("/app")}><Icon

          source={ArrowLeftIcon}

          tone="base"

        /></button>

      </ui-title-bar>