Per-plot appearance inputs, generated from the descriptor rather than
hand-written on each one — every indicator gets colour, opacity, thickness,
and line style for free, and a settings UI can render them as a "Style" tab
beside the descriptor's own inputs.
Defaults come from the plot's declared style (and its legacy colorKey), so
an indicator that already ships colours keeps them.
Per-plot appearance inputs, generated from the descriptor rather than hand-written on each one — every indicator gets colour, opacity, thickness, and line style for free, and a settings UI can render them as a "Style" tab beside the descriptor's own
inputs.Defaults come from the plot's declared style (and its legacy
colorKey), so an indicator that already ships colours keeps them.