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Extending Unity with Editor Scripting: Put Unity to use for your video games by creating your own custom tools with editor scripting: Tadres, Angelo: 9781785281853: Amazon.com: Books
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If you make Unity Editor tools, try the new Editor Foundations Design System: This covers helpful guidance, best practices, and other resources to help users build a better Editor UI. : r/Unity3D
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How to Make Custom Unity Editor Tools (Editor Contextual Tools)?
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