How to draw a textured rectangle?

JohnHardman

Now that we have SkiaSharp, Shapes etc., how would one go about replacing a colored BoxView with a colored and textured block, to run on Android, iOS and UWP?

For those users who are color-blind, but who do not want to use VoiceOver etc., it would be good to be able to replace the use of colored blocks where the color used represents a particular meaning/state, replacing them with textured blocks where a different texture is used depending on meaning/state. How would one go about including such textured blocks in a XF UI?