Assigning icons

Unity allows you to assign custom icons for GameObjectsThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary and scriptsA piece of code that allows you to create your own Components, trigger game events, modify Component properties over time and respond to user input in any way you like. More info
See in Glossary. These icons display in the Scene viewAn interactive view into the world you are creating. You use the Scene View to select and position scenery, characters, cameras, lights, and all other types of Game Object. More info
See in Glossary, along with built-in icons for items such as Lights and CamerasA component which creates an image of a particular viewpoint in your scene. The output is either drawn to the screen or captured as a texture. More info
See in Glossary. Use the Gizmos menu to control how icons are drawn in the SceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info
See in Glossary view.

GameObject Select Icon button

To change the icon for a GameObject, select the GameObject in the Heirarchy window or Scene view, then click the Select Icon button (the blue cube, highlighted with a red square in the image below) in the InspectorA Unity window that displays information about the currently selected GameObject, Asset or Project Settings, alowing you to inspect and edit the values. More info
See in Glossary window to the left of the GameObject’s name.

When you assign an icon to a GameObject, the icon displays in the Scene view over that GameObject (and any duplicates made afterwards). You can also assign the icon to a PrefabAn asset type that allows you to store a GameObject complete with components and properties. The prefab acts as a template from which you can create new object instances in the scene. More info
See in Glossary to apply the icon to all instances of that Prefab in the Scene.

Script Select Icon button

To assign a custom icon to a script, select the script in the Project window, then click the Select Icon button (the C# file icon, highlighted with a red square in the image below) in the Inspector window to the left of the script’s name.

When you assign an icon to a script, the icon displays in the Scene view over any GameObject which has that script attached.

The Select Icon menu

Whether you are assigning an icon to a GameObject or a Script, the pop-up Select Icon menu is the same:

The Select Icon menu has built-in icons. Click on an icon to select it, or click Other… to select an image from your project Assets to use as the icon.

The built-in icons fall into two categories: label icons and image-only icons.

Label icons

Assign a label icon to a GameObject or script to display the name of the GameObject in the Scene view.

Image-only icons

Image-only icons do not show the GameObject’s name. These are useful for assigning to GameObjects that may not have a visual representation (for example, navigation waypoints). With an icon assigned, you can see and click on in it the Scene view to select and move an otherwise invisible GameObject.

Any Asset image in your project can also be used as an icon. For example, a skull and crossbones icon could be used to indicate danger areas in your level.

Note: When an Asset’s icon is changed, the Asset itself is marked as modified and therefore picked up by version controlA system for managing file changes. You can use Unity in conjunction with most common version control tools, including Perforce, Git, Mercurial and PlasticSCM. More info
See in Glossary systems.