fixed a few missed "black metal" -> static color lines

homedecor/electronics.lua

@@ -23,7 +23,7 @@ homedecor.register("speaker_open", {
 		"homedecor_speaker_sides.png",
 		"homedecor_speaker_driver.png",
 		"homedecor_speaker_open_front.png",
-		"homedecor_generic_metal_black.png"
+		{ name = "homedecor_generic_metal.png", color = homedecor.color_black }
 	},
 	groups = { snappy = 3, not_in_creative_inventory=1 },
 	sounds = default.node_sound_wood_defaults(),

homedecor/gastronomy.lua

@@ -118,7 +118,7 @@ homedecor.register("beer_tap", {
 	mesh = "homedecor_beer_taps.obj",
 	tiles = {
 		"homedecor_generic_metal_bright.png",
-		"homedecor_generic_metal_black.png",
+		{ name = "homedecor_generic_metal.png", color = homedecor.color_black }
 	},
 	inventory_image = "homedecor_beertap_inv.png",
 	groups = { snappy=3 },

homedecor/office.lua

@@ -27,7 +27,7 @@ homedecor.register("desk", {
 	tiles = {
 		homedecor.plain_wood,
 		"homedecor_desk_drawers.png",
-		"homedecor_generic_metal_black.png",
+		{ name = "homedecor_generic_metal.png", color = homedecor.color_black }
 	},
 	inventory_image = "homedecor_desk_inv.png",
 	selection_box = desk_cbox,