My point has nothing to do with background color and legibility ; the design is an unmodified Bootswatch theme (http://bootswatch.com/). The point is about features ; the current listing on Heroku contains 78 addons. You have to read each name and short description to possibly find what you are looking for and once you have found the 2 or 3 matching options you have no way to know what people think of them. Hence search, tags, reviews and ratings which is the point of this little project.