title: Rails and SASS: Multiple Color Themes Using Same Variables - Allow user to select preferred theme for account
body: <p>I would like to use one set of SASS variables for a Light Theme and change those same SASS variables for my Dark Theme. I do not really want my CSS full of mixins and if statements for each theme, which seem to be most of the answers I found so far. My css is almost entirely written already so I also do not want to go back through and change a ton if possible.</p>
  
  <p>I also would like to give my users the ability to select the theme they wanted and save their preference.</p>