title: Correct way to customize bootstrap theme (Using SCSS source files)
body: <p>Right now I have all the unmodified bootstrap files  a copy of those files for customization.</p>
  
  <p>These folders:</p>
  
  <p>--> Bootstrap<br>
  --> Custom (copy of the above)</p>
  
  <p>I first include boostrap files and then the custom files, which right now are an exact copy.</p>
  
  <p>Let's say I start changing values in "Custom" in order to get the desired looks. Then I update boostrap to a new version, by updating the bootstrap folder. A lot of changes might not come through since the previous version is basically copied to "Custom" even if the css rules haven't been changed at all.</p>
  
  <p>Is this the correct way to do it, or should I try a different approach?</p>