Initial take on wires

src/css/icons.scss

@@ -1,5 +1,5 @@
 $buildings: belt, cutter, miner, mixer, painter, rotater, splitter, stacker, trash, underground_belt,
-    energy_generator;
+    energy_generator, wire;
 
 @each $building in $buildings {
     [data-icon="building_icons/#{$building}.png"] {

src/css/ingame_hud/buildings_toolbar.scss

@@ -1,4 +1,4 @@
-#ingame_HUD_buildings_toolbar {
+.ingame_buildingsToolbar {
     position: fixed;
     @include S(bottom, 0px);
     left: 50%;

src/css/main.scss

@@ -74,6 +74,7 @@ ingame_HUD_EntityDebugger,
 ingame_HUD_InteractiveTutorial,
 ingame_HUD_TutorialHints,
 ingame_HUD_buildings_toolbar,
+ingame_HUD_wires_toolbar,
 ingame_HUD_BlueprintPlacer,
 ingame_HUD_Waypoints_Hint,
 ingame_HUD_Watermark,