How to resize legend items

[ismirsehregal]

Unfortunately there is no attribute to change the item height independently of the trace. Also see this related thread:

Increase the size of legend symbol in plotly

@maddy6 The marker size in legend is the same as the marker size set in the trace definition. For this plot: [marker_size] I inserted in the your first trace above: marker_size=10 while in the second trace: marker_size=15