"tool-1" = PEN (size=5 color="red");
"default" = "tool-1";

"tool-2" = PEN (size=5 color="blue");
"default"[SHIFT] = "tool-2";

"tool-3" = PEN (size=5 color="yellow");
"default"[CONTROL] = "tool-3";

"tool-4" = PEN (size=6 color="green" arrowsize=1);
"default"[2] = "tool-4";

"tool-5" = ERASER (size=75);
"default"[3] = "tool-5";