How to change the style of the site on the site?

Question

css

Good day everyone!
Please tell me if there are any plugins for wordpress so that you can change the style of the site while viewing it.
As done here wpdemos.lsvr.sk/beautyspot

Answer 1

there are probably ready-made themes with such a feature for WP, but if your theme is not designed for this, then this cannot be done in two clicks.
And it's done like this:
Create alternative css and by clicking through js change the url of the connected css. You can stuff all styles in 1 css (it seems not rational to me) and change them in js by clicking the class body.
BUT!!! doing this for a website is a prank. Such a function is justified for personal accounts, admin panels, where a person works a lot. For the face of the site - this is obviously superfluous.