Mention deprecated classes for color mode on offcanvas

site/content/docs/5.3/components/offcanvas.md

@@ -139,10 +139,14 @@ When backdrop is set to static, the offcanvas will not close when clicking outsi
 
 ## Dark offcanvas
 
-{{< added-in "5.2.0" >}}
+{{< deprecated-in "5.3.0" >}} {{< added-in "5.2.0" >}}
 
 Change the appearance of offcanvases with utilities to better match them to different contexts like dark navbars. Here we add `.text-bg-dark` to the `.offcanvas` and `.btn-close-white` to `.btn-close` for proper styling with a dark offcanvas. If you have dropdowns within, consider also adding `.dropdown-menu-dark` to `.dropdown-menu`.
 
+{{< callout warning >}}
+Heads up! Dark variants for components were deprecated in v5.3.0 with the introduction of color modes. Instead of manually adding classes mentioned above, set `data-bs-theme="dark"` on the root element, a parent wrapper, or the component itself.
+{{< /callout >}}
+
 {{< example class="bd-example-offcanvas p-0 bg-body-secondary overflow-hidden" >}}
 <div class="offcanvas offcanvas-start show text-bg-dark" tabindex="-1" id="offcanvasDark" aria-labelledby="offcanvasDarkLabel">
   <div class="offcanvas-header">