13. v0.8.8 — Strategy plot() overlays on the chart

Released 2026-07-07. A backtested Pine strategy now renders its own visual outputs on the chart, not just its buy/sell trade markers. Follows v0.8.7.

Added

• A Pine strategy's plot() / plotshape / fill / bgcolor / … now draw on the chart. Previously the strategy path drew only buy/sell trade markers and dropped every plot. Now a strategy that plots its moving averages (or any other series) shows them on its pane, exactly as a Pine indicator would — full visual parity, because they run through the identical rendering pipeline.
• A sample sma-cross-over.pine strategy that plots its fast/slow SMAs, so the behavior is visible out of the box.

Technical notes

• A Pine strategy and a Pine indicator are the same language: plot() and friends run in a strategy exactly as in an indicator. Rather than re-implementing a subset of the visual IR, fractal registers the ran strategy source as an ephemeral Pine indicator and lets the existing chart-indicator pipeline draw it. These overlay instances are derived, never persisted — they render on the chart only, so they stay out of the indicator legend/editor and the saved indicator list.
• Trade markers still come from the broker report (not plot*), so nothing double-renders. Strategy overlays are suppressed during replay, mirroring how trade markers behave. A strategy with no plottable output registers nothing.

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