Hello,
This is a great question and something many merchants run into when working with Dawn and other OS 2.0 themes. The reason your sort labels (Best selling, Price low to high, etc.) are still showing in English is that these options are injected by Shopify’s core storefront system rather than being pulled from the theme’s translation files (ar.json, en.default.json). That’s why Liquid translations or t filters don’t apply here.
Possible solutions:
1. Translate & Adapt app
I recommend checking with Shopify’s free Translate & Adapt app first. In some cases, these dynamic labels appear there, and you can apply the correct Arabic translation directly.
2. JavaScript override (workaround)
If you don’t see them in your translation settings, you can add a small JavaScript snippet to your theme to override the text on page load. For example:
<script>
document.addEventListener("DOMContentLoaded", function() {
  const sortLabels = {
    "Best selling": "الأكثر مبيعًا",
    "Price, low to high": "السعر من الأقل إلى الأعلى",
    "Price, high to low": "السعر من الأعلى إلى الأقل",
    "Date, new to old": "الأحدث إلى الأقدم",
    "Date, old to new": "الأقدم إلى الأحدث"
  };
  document.querySelectorAll('select[name="sort_by"] option').forEach(option => {
    if (sortLabels[option.text]) {
      option.text = sortLabels[option.text];
    }
  });
});
</script>
This ensures your storefront stays consistent in Arabic while Shopify works on broader translation support.
3. Contact Shopify Support
Since these labels come directly from the platform, the most sustainable fix will need to be handled by Shopify. I recommend opening a support ticket so your request is logged — this helps prioritize better multi-language support in future updates.
In short: the current theme translations won’t override these labels, but you can achieve the result today with either Translate & Adapt (if available) or a lightweight JavaScript override.
Hope this helps keep your Arabic storefront consistent and professional.
Best,
Richaerd
Shopify Partner & Ecommerce Expert