This is the same issue as https://www.drupal.org/node/1252178 for D8. This request is not simply in order to bring us in feature parity with D8 - it's been mentioned in various issues like #189, #214, #801 and latest in #988. It was listed in #211 but dropped as N/A back then. Reconsider?
GitHub Issue #:
1009
Recent comments
Here's a fun hack: You can remove any css file in a custom theme by defining a file with the same name in the theme's info file, but not actually having a file with that name in the theme...
How to get rid of grid-flexbox.css
What is demoralizing for the maintaineers when someone mentions the flaw of a useless buggy feature? A different opinion should always be a motivation not otherwise. I will mark this one...
Files uploaded using add file
You lost me there. I'm not sure what you mean. Anyway, it's very demoralizing to volunteers who maintain this beautiful (free) project to read your very negative and frequent rants about how...
Files uploaded using add file