Add a spotlight illustration to the publication header

README.md

@@ -62,7 +62,10 @@ configs:
   <sup>*</sup> Equal contribution
 </p>
 
-<p align="center"><strong>NeurIPS 26 ED Track Spotlight</strong></p>
+<p align="center">
+  <img class="dark:hidden mx-auto" src="assets/spotlight-light.svg" width="440" alt="NeurIPS 26 ED Track Spotlight">
+  <img class="hidden dark:block mx-auto" src="assets/spotlight-dark.svg" width="440" alt="NeurIPS 26 ED Track Spotlight">
+</p>
 
 <p align="center">
   <a href="https://arxiv.org/abs/2606.26738"><img src="https://img.shields.io/badge/arXiv-2606.26738-b31b1b?logo=arxiv&amp;logoColor=white" alt="arXiv paper"></a>