How to highlight a 3D object in Unity?
How to create a selection highlight using the Emission property of a default shader.
How to select 2D objects using mouse in Unity?
In Unity to select 2D objects using mouse use 𝗣𝗵𝘆𝘀𝗶𝗰𝘀𝟮𝗗.𝗢𝘃𝗲𝗿𝗹𝗮𝗽𝗕𝗼𝘅()