title: Customizing/Overriding Rails SimpleForm Gem
body: <p>I'm using the Rails gem SimpleForm, but I think my question may be applicable to any gem.</p>
  
  <p><a href="https://github.com/plataformatec/simple_form" rel="nofollow">https://github.com/plataformatec/simple_form</a></p>
  
  <p>It has a lot of great features and customization, but I'm looking to go a bit further. For example, I really wish the markup generated had no default classes inserted into it, but I'd still like the ability to insert my own manually. I found that I could remove some of the classes by commenting out lines in the gem files. However this is outside of my project-- I would want a DRY solution that will stay with my project when I deploy to production, preferably without having to pack all of my gems.</p>
  
  <p>I imagine this is a common situation that could apply to any gem, and I should be able to override any gem wholly or partially probably by adding customs files in my project that override the gem... but I'm not sure how.</p>
  
  <p>Any help would be appreciated! Thanks.</p>