Heatmap v2.5: 5x Speed Boost, Persistent Settings, and Ghost Orders
A major performance and usability update for the heatmap screener.
5x faster rendering: Update interval reduced from 500ms to 100ms, delivering near-instantaneous limit order visualization. This is critical for capturing rapid order flow changes during volatile market conditions.
Dynamic limit order volumes: Order sizes now update in real time as they are partially filled. Hovering reveals exact volume at each second — essential for identifying spoofing patterns.
Side indicators: Small L/S labels on the price scale show whether a limit order is positioned on the long or short side, accounting for exchange-specific price discrepancies.
Persistent preferences: All settings — slider positions, search queries, sidebar sorting, selected symbol, and AI helper configuration — now survive page reloads via localStorage.
Ghost order detection: Binance frequently places and cancels large orders within seconds. These 'ghost orders' are now tracked and faded out smoothly, distinguishing genuine liquidity from manipulation.