I created a canvas element where I can draw paths. There, I draw transparent paths and I "scratch" reveal the foreground. It works on both mobile and desktop.
content-script
git-bundle
memoryanalyzer
urlmappings.groovy
pure-js
gevent
jcabi
asp.net-webhooks
jenkins-update
hover-state
installutil
nginx-log
filepicker
php-7.1
r2winbugs
honeysql
lexical
chromium
common-data-service
control-template
odm
surveytogo
samsung-galaxy
linearlayoutmanager
xfermode
pdcurses
discrete-optimization
operator-precedence
next-connect
capstone