letters.register_letters("scifi_nodes", "white2", "scifi_nodes:white2", "Plastic", "scifi_nodes_white2.png", {
    paramtype2 = "colorwallmounted",
    palette = "unifieddyes_palette_colorwallmounted.png",
    groups = {
        ud_param2_colorable = 1,
        not_in_creative_inventory = 1,
        not_in_craft_guide = 1,
        oddly_breakable_by_hand = 1,
        attached_node = 1
    }
})