When comparing Material Theme vs Railscast, the Slant community recommends Railscast for most people. In the question“What are the best color themes for text editors?” Railscast is ranked 15th while Material Theme is ranked 17th. The most important reason people chose Railscast is:
Obviously Railscast was designed for Ruby. It's easy to see where your code blocks begin and end.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Improves Sublime Text's user interface
The theme cleans up the interface so that all elements in the UI are easier to find without being distracting. The icons for each file type clearly define what the file is so there's no having to look too closely at file extensions.
The color scheme choices (such as Oceanic Next Dark) in particular work well to distinguish functions, classes, keywords, properties, values, etc. for various languages.
Pro Visually appealing
Pro Full language support
Pro Syntax highlighting makes it easy to see block indentations in Ruby code
Obviously Railscast was designed for Ruby. It's easy to see where your code blocks begin and end.
Cons
Con No contrast between main view and panels
Makes it hard to distinguish what's what at a glance.
Con Developer pushes versions too often
Very little meat in each version. Has been known to dramatically change the color scheme.