- current_layer indicates active layer at the time - default_layer indicates base layer - default_layer is used when current_layer is 0 - with this LAYER_BIT action works as overlay even if default_layer varies other than layer 0.
- current_layer indicates active layer at the time - default_layer indicates base layer - default_layer is used when current_layer is 0 - with this LAYER_BIT action works as overlay even if default_layer varies other than layer 0.