Flowsurface Files

Added

• KlineChart rewrite - Candles, footprints, and comparison tickers now share one chart, bringing per-series customizations and drawing tools. Comparison tickers are layers instead of a separate pane. (#143, [#144])
• Scriptable indicators - Indicators are authored in .ind files with a standalone language, compiler, and runtime. Bundled indicators ship as sources, custom ones load from the indicators folder or --indicator-path. (#146, [#147])
• TPO and volume profile studies - Daily, weekly, and monthly TPO with POC, value areas, initial balance, single prints, and interactive splitting and merging. Profiles can be built from candles without trade data, approximating the distribution, or from trades for the observed one. (#148)
• Multi-ticker mode TimeAndSales - Supports multiple data sources in single pane. (#149)
• Spread and depth indicators - New heatmap chart indicators sharing the time axis and crosshair, with independent value-axis zoom. (#151)
• Chart presets - Save panel layout, indicators, studies, and appearance as a preset, then apply it to any chart pane. Presets are global and independent of ticker. (#152)

Improved

• Market data units - Quantities now default to quote currency.
• Heatmap rendering - Volume bars and delta overlays are antialiased, and drag/wheel zoom sensitivity is tuned.

Fixed

• Stream subscriptions - Closing a popout that shares a ticker with the grid no longer rebuilds that ticker's stream.

Note: Chart panes saved by 0.8.x are not migrated and reopen as starter panes. Layouts, time&sales, ladder, and heatmap panes are preserved.

Full Changelog: https://github.com/flowsurface-rs/flowsurface/compare/v0.8.10...v0.9.0