diff --git a/.jules/bolt.md b/.jules/bolt.md
index 2e6355b..d346a15 100644
--- a/.jules/bolt.md
+++ b/.jules/bolt.md
@@ -8,3 +8,7 @@
 ## 2025-01-29 - optipng False Negatives
 **Learning:** `optipng -o7` reported `header.png` as "already optimized", but `zopflipng` was able to reduce it by ~8% (23KB). `optipng` simulation is not a reliable indicator for maximum compression potential.
 **Action:** Always verify "optimized" files with `zopflipng` before assuming they are fully compressed, even if `optipng` reports no gains.
+
+## 2025-01-31 - [Verification Over History]
+**Learning:** Historical journal entries about unoptimized files (e.g. `header.png`) may be outdated. `zopflipng` confirmed `header.png` was already optimal despite contrary notes.
+**Action:** Always verify optimization potential on the current file state, regardless of historical notes.
diff --git a/LEGO Friends/Olivia/Olivia_Advent.png b/LEGO Friends/Olivia/Olivia_Advent.png
index 2b5a20e..7662969 100644
Binary files a/LEGO Friends/Olivia/Olivia_Advent.png and b/LEGO Friends/Olivia/Olivia_Advent.png differ
diff --git a/LEGO Minifigures/Series 9/Mermaid/Mermaid Torso SVG.png b/LEGO Minifigures/Series 9/Mermaid/Mermaid Torso SVG.png
index a7d006f..b09325b 100644
Binary files a/LEGO Minifigures/Series 9/Mermaid/Mermaid Torso SVG.png and b/LEGO Minifigures/Series 9/Mermaid/Mermaid Torso SVG.png differ
diff --git a/Ninjago/Slithra/Slithra Head.png b/Ninjago/Slithra/Slithra Head.png
index 12fe667..755dbf2 100644
Binary files a/Ninjago/Slithra/Slithra Head.png and b/Ninjago/Slithra/Slithra Head.png differ
diff --git a/README.md b/README.md
index 870eb46..762742f 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,11 @@ Instructions
 * Download the file of your choice by clicking on it, then clicking the "Raw" button above the picture at the right. Then save the image to your computer by pressing Ctrl+S on your keyboard. 
 * When using these textures in your project, you must give credit to me, rioforce, for the textures. See license below.
 
+Performance
+===========
+
+To ensure fast load times and efficient repository usage, PNG assets should be optimized using lossless compression tools. We recommend using `zopflipng` or `optipng` to minimize file size without sacrificing quality.
+
 Support
 =======