OPEN-SOURCE SCRIPT

Session Range + Previous-Session high/low Buffer Zones

306
What it does — the two sessions and blue/red/green zones
Timing — built at session close, projected forward, no growing
Auto buffer & start times by market (Crypto 2% / Metal 1.25% / Forex 0.30%; starts 02:00 / 03:00)
How to read it — premium vs discount, the 50% line
Notes — timezone and detection caveats

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