This 18 Cool Gradients was designed by Osama Dawood https://www.sketchappsources.com/free-source/3607-gradients-ui-kit-sketch-freebie-resource.html

An example project on how to create randomise dice using variables along with containers and states to recreate various dice. Use the + / - icons to add more of each dice. Includes all variations of basic polyhedral dice for use.

Form validation using variables and states

An endangered species is a type of organism that is threatened by extinction. Species become endangered for two main reasons: loss of habitat and loss of genetic variation.