Hey buddy! The spritesheet has several sprites to be used as 9-sliced object. I'm not an expert in Unity but try this:
- Import your spritesheet into Unity by dragging and dropping it into your project folder.
- Create a new Sprite Renderer object by right-clicking in the Hierarchy window and selecting "2D Object" > "Sprite".
- Assign your spritesheet to the Sprite Renderer by dragging and dropping it onto the "Sprite" field in the Inspector window.
- In the Sprite Editor window, select the sprite you want to 9 slice and click the "Slice" button in the top left corner.
- In the Slice menu, select "Grid by Cell Size" and set the cell size to the dimensions of your sprite.
- Use the Slice Tool to create a 3x3 grid over your sprite. The corner sections should be small and the middle sections should be the size of the sprite.
- Select the corner sections and set their "Sprite Mode" to "Single" in the Inspector window.
- Select the middle sections and set their "Sprite Mode" to "Sliced" in the Inspector window.
- Adjust the "Border" property for each sliced section to control how much of the sprite is stretched when it is resized.
- Apply the changes and save your sliced sprite.