diff --git a/README.md b/README.md
index 1f6c081..07754f8 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,13 @@ PlatformIO starter for the M5Stack Tab5. It demonstrates the 1280x720 display,
 touch buttons, a brightness slider, touch coordinates, memory, battery, Wi-Fi,
 and accelerometer status.
 
+## Variation 1
+
+The first refinement uses larger FreeSans fonts, clearer visual hierarchy, and
+a PSRAM-backed canvas for the brightness control. The slider strip is composed
+off-screen and pushed to the display in one operation, eliminating visible
+redraw flicker while dragging.
+
 ## Build and upload
 
 ```powershell