For testing WCAG 1.4.12 text spacing.
Based off of the Text Spacing Bookmarklet. However, this version can be disabled without refreshing the page. Simply reactivate the bookmarklet to restore default styling.
Install from https://drewlee.github.io/1412bookmarklet/.
To make code changes, first run npm install.
Modify from src/index.js.
Minify with npm run build. Result is output to dist/.