color : [string] (default: '') Color used for this layer.
KiCad 6+: don’t forget the alpha channel for layers like the solder mask.
description : [string] (default: '') A description for the layer, for documentation purposes.
A default can be specified using the layer_defaults global option.
force_plot_invisible_refs_vals : [boolean] (default: false) Include references and values even when they are marked as invisible.
layer : [string] (default: '') Name of the layer. As you see it in KiCad.
plot_footprint_refs : [boolean] (default: true) Include the footprint references.
plot_footprint_values : [boolean] (default: true) Include the footprint values.
suffix : [string] (default: '') Suffix used in file names related to this layer. Derived from the name if not specified.
A default can be specified using the layer_defaults global option.
use_for_center : [boolean] (default: true) Use this layer for centering purposes.
You can invert the meaning using the invert_use_for_center option.