One way to apply themes to your site / app

There are several ways to manage themes. I searched for a way to control both HTML and svg images. This example is mainly built on CSS with some help from HTML and Javascript. The site is built upon a small engine of Go and Go templates which also replaces Apache and/or Nginx.

This solution is based on four main technologies.

CSS Variables to make it more DRY
Symbol SVG icons to be able to change svg colors
localStorage to hold the theme variable
hsl() colors makes it easer to change color within a theme

Select your theme in the popup list below.

Default
Indigo
Dodger
Barbie
Snowflake
Classic