SVG - EvenOdd

https://www.youtube.com/watch?app=desktop&v=4OLGoYnBh5o

https://www.geeksforgeeks.org/even-odd-method-winding-number-method-inside-outside-test-of-a-polygon/

https://learn.microsoft.com/en-us/dotnet/api/coregraphics.cgpathdrawingmode?view=xamarin-ios-sdk-12

 https://www.sitepoint.com/understanding-svg-fill-rule-property/

https://www.youtube.com/watch?v=y6SnS3jHPWk

https://github.com/Brooooooklyn/canvas#covert-filltype-in-path

https://www.youtube.com/watch?v=j6dZw3K_E3M

https://yqnn.github.io/svg-path-editor/

https://www.sarasoueidan.com/demos/interactive-svg-coordinate-system/

https://blog.idrsolutions.com/2012/06/pdf-to-html5-conversion-no-even-odd-winding-rule-for-filling-shapes-part-1/

https://svg-path-visualizer.netlify.app/

https://svg-path-visualizer.netlify.app/#M%20600%2081%20A%20107%20107%200%200%201%20600%20295%20A%20107%20107%200%200%201%20600%2081%20z%20M%20600%20139%20A%2049%2049%200%200%201%20600%20237%20A%2049%2049%200%200%201%20600%20139%20z

https://www.geeksforgeeks.org/even-odd-method-winding-number-method-inside-outside-test-of-a-polygon/