[jameslk]

Thank you for clarifying your library's usage of "semantic." Although I disagree with how it currently abuses the original design philosophies of HTML/CSS, I can see an interesting perspective that this library has taken alternatively with the meaning of being semantic, which is valuable and insightful.

When I first heard about Semantic UI, I was excited because I had hoped someone had finally built something like Bootstrap using only Sass/Less mixins that were pure and side effect free (i.e. not littering the global namespace with generically named classes, not dependent on the structure of the HTML). I was disappointed that was not the case and frustrated with the confusion of the usage of "semantic" when its already widely adopted to mean something specific for HTML.

I really wish UI libraries were built on mixins. Pure mixins would allow for reusable component styles and modifiers such as "three large red buttons" to be mixed into semantically-named CSS classes such as "user-controls." Additionally, mixins would allow for media query usage (e.g. I could use a "big red button" for desktop and "small red button" for mobile), allow for more selectiveness about which components/modifiers I want to use (which may reduce the overall size of the CSS), allow for conditional styling logic, and generally be easier to work with in a CSS preprocessor. This facilitates all the goals you've mentioned while being more flexible, open to extension and enabling us to stick to the way HTML/CSS was meant to be used. Maybe you've already considered all of this and have your reasons for not pursuing it. I'm sure it would be much more work to go that way now regardless, although it seems Bootstrap 4 has started heading in that direction.