[QGIS-Developer] Update layer styling panel using Python

[Anita Graser]

Hi,

After changing a layer's symbology using Python, how can I update the layer
styling panel to reflect the changes? I'm specifically asking because
data-defined overrides are not displayed after

exp = 'coalesce(scale_exp("pop_max", 0, 10000000, 0, 7, 0.57), 0)'
vlayer.renderer().symbol().symbolLayer(0).setDataDefinedProperty(
    QgsSymbolLayer.PropertySize, QgsProperty.fromExpression(exp) )
vlayer.triggerRepaint()

Regards,
Anita
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