Greetings, welcome to the Forums.
One way or another, garden tools must be made highly visible. If they don't come that way, fluorescent paint is probably the easiest way to make it so.
Whenever I see green, black, or earth-tone garden tools, I know it's either a choice of know-nothing designers or a cynical marketing ploy for know-nothing consumers.
Those that don't agree, haven't misplaced a tool in their garden yet. When they do, then they will.