diff --git a/site/assets/images/cpu-dumb-maybe.webp b/site/assets/images/cpu-dumb-maybe.webp
new file mode 100644
index 0000000..44e37f1
Binary files /dev/null and b/site/assets/images/cpu-dumb-maybe.webp differ
diff --git a/site/blog/why-cores.md b/site/blog/why-cores.md
index 80b1f59..82894b9 100644
--- a/site/blog/why-cores.md
+++ b/site/blog/why-cores.md
@@ -3,6 +3,9 @@ title: "Why more `/sys/class/hwmon/*/temp*_label` than CPU cores?"
 
 date: 2025-06-05
 
+color: "#99CF9F"
+thumbnail: /assets/images/cpu-dumb-maybe.webp
+
 keywords:
 - hardware
 ---