Doodle

 In case you missed it, the link tonGoogle's Flat white doodle. wonder

how it was made...

https://www.google.com/?doodle=312200470&source=sh/x/do

In point of fact, developers use Google's Closure service when they do work

for them. Eventually, one has created a javascript .html that goes to a web server:

https://google.github.io/closure-library/develop/get-started

                                                                     *     *     *

                                                                    

This works, I should be able to do something!!

                                                                              

So, I've got the order of layers. 

                                                                       

The trick is to create a shape that will serve as a mask - here, a circle reshaped as a cup -

whose blend method one sets to Alpha Over. One sees through everything directly below.

One can control for that by turning the circle into a group. this makes the first layer below the

group  opaque...