Stroke color override with @symbol_color does not use overridden Fill color

[qgib]

Author Name: Johannes Kroeger (Johannes Kroeger)
Original Redmine Issue: 20800
Affected QGIS version: 3.5(master)
Redmine category:symbology

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Use some polygon data.

1. Override the fill color to something with an expression, e.g. @color_rgb(255,0,0)@
2. Override the stroke color to use @@symbol_color@

The stroke will not use the overridden fill color but the color that option had before the overriding.

The stroke should be using the overridden fill color.

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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This is working as intended -- The @symbol_color variable contains the color set for the "top level" of the symbol (i.e. the color you see when you click the "Marker"/"Line"/"Fill" option at the top of the symbol widget's layer list.

When you override the fill color, you're only setting the color for that single symbol layer, but potentially there could be many layers in your symbols, each with their own colors.

I think this report is more of a "feature request", requiring new variable(s) of the type @symbol_layer_fill_color, etc. But that's also complicated -- because there's no dependency resolution here, and you could potentially have the outline color depend on the fill color, OR the fill color depend on the outline color, etc...

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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• status_id was changed from Feedback to Closed