Okay, let's add some more contrast between the player object and the floor plane. 
To add color or a texture to a model, you need to use a material. 
This project doesn't use any textures, but we will quickly review what's included in the URP lit material. 
First, let's create a new folder in our project to hold the materials. 
In the Project window, select the Create menu and then folder. 
Rename this new folder, Materials. 
With the Materials folder selected, use the Create menu again and this time select Material. 
See how the material was created in the materials folder. 
This is because you had the folder selected when you created the material. 
Rename this material, Background. 
Next, let's change the color of this background material. 
In the Project window, select the background material and review the Inspector. 
In the surface input section, the first property is Base Map. 
Select the Base Maps color field, to open a color picker. 
Change the color to a pale gray. 
You can set the RGB values of 130, 130 and 130, to get the exact shade that the example game uses. 
The next map represents both Metallic and Smoothness. 
As this Unity project does not use textures, you can adjust these independently. 
First, set the Metallic to zero. 
Then change the Smoothness to 0.25 to create a matte material. 
To apply the material to the plane, select the material in the Project window, then drag it onto the plane in the Scene view. 
If you drag it over the player sphere, it may try to assign itself there. 
If it does this, don't worry, use Ctrl or Command Z to undo. 
And then assign it to the plane. 
Now the background is ready. 
Let's create another material for the player. 
In the Project window, select Create > Material. 
Name this new material, Player. 
In the Inspector, select the Base Maps color field to open a color picker. 
Set the RGB values to 0, 220, and 255, which is a nice light blue. 
Next, set the Metallic to zero and change the Smoothness, to 0.75 for shiny finish. 
Then, as you did before, drag the material from the Project window onto the player sphere in the Scene view. 
Great, you've almost finished setting up for the game. 
But let's make one additional change and rotate the main Directional Light so that there is better lighting on the player. 
In the Hierarchy, select the Directional Light and identify its Transform component in the Inspector. 
Change its rotation to 50, 50 and 0. This will give it a better silhouette. 
Now you've created a player GameObject and a background play field, awesome. 
In the next section of this project, you'll get started with the game functionality and write a custom script to get the sphere moving around the play field.