Sublime
An inspiration engine for ideas
architectural design.
Christopher Bugaj • The New Assistive Tech: Make Learning Awesome for All!
generating Sketch files directly from a web page,
Alla Kholmatova • Design Systems (Smashing eBooks)
For categories that are equally important, use perceptual layers with the same brightness and size but vary the hue (like the lines on the London Tube map).
Giles Colborne • Simple and Usable Web, Mobile, and Interaction Design
Reference Website
Dan Mall • Design That Scales
but always leave the final decision up to the designer-developer pair who worked on a module.
Alla Kholmatova • Design Systems (Smashing eBooks)

Two-dimensional layering is useful for presentation and navigation.