Feature Proposal: Better theme customizations via custom CSS with live previews

When people ask “why WordPress?”, some of the most common answers center around flexibility for users of all kinds, whether they’re building their sites primarily through code or UI. Let’s take the story of a user who does a little of both – we’ll call her Becky. Becky is a pretty savvy user. She knows that you’re supposed to make child themes instead of hacking on a theme directly, because updates can wipe out your changes. She found that out the hard way when she first started using WordPress – she hardly knew what CSS or PHP were, but she knew there was a theme editor in the admin and that she could make tweaks to colors or remove the author byline pretty easily without having to figure out this FTP stuff. Later on, most colors could be changed with the customizer so having a child theme just to remove an author byline seemed like overkill, but it was certainly better than having it reappear every time her site updated, especially with auto updates turned on.
After a couple years with the same theme on her personal site, Becky felt it was time to change things up. She was pleasantly surprised to find some new features that made getting
Source: https://managewp.org/articles/13591/feature-proposal-better-theme-customizations-via-custom-css-with-live-previews

source https://williechiu40.wordpress.com/2016/10/11/feature-proposal-better-theme-customizations-via-custom-css-with-live-previews/