MainCamera's main frame ( outer border ) not visible in unity 2019.4

Could you please help me with my MainCamera's problem. Whenever I start a new project, I see no MainCamera borders like you guys are seeing. Almost every tutorial guy has a border main frame for the camera into which he can put things into but I am seeing no border when clicked on the main camera element. I am seeing border around other elements like backgrounds and sprites but not around the main camera element.