newsletter: Add entry on CSS filter

src/content/newsletters/2024-10-31.mdx

@@ -29,12 +29,20 @@ We've added two new board members:
 
 - [Mike Shaver](https://ladybird.org/posts/mike-shaver-joins-board/): a browser industry veteran, former VP of Engineering at Mozilla, Director of Engineering at Facebook, and many other things. Mike is a hardcore engineering leader and will help us raise the bar for Ladybird and ourselves.
 
-### Fixing excessing repainting by locking refresh rate
+### Fixing excessive repainting by locking refresh rate
 
 Until recently, we used a "push" model for repainting. Any event that might invalidate rendering, like scrolling a page, would schedule event loop processing to perform style, layout, or painting updates if necessary. Repainting in this fashion often resulted in excessive work, as we produced more frames than the display could render.
 
 This month, we solved this issue by switching to a "pull" model, where the repainting task is always scheduled 60 times per second and performs style, layout, and paint updates if necessary. Making this change also aligned us more closely with the model described in the HTML specification.
 
+### CSS filter support
+
+Ladybird already implemented a number of CSS backdrop filters, but now introduces support for the CSS `filter` property with which you can modify the graphical appearance of elements.
+
+We support blurring, drop shadows, grayscale, sepia, and many more.
+
+![](/public/assets/img/newsletter-oct-2024-css-filter.png)
+
 ### Credits
 
 We thank the following people who contributed code to Ladybird in October 2024: