There’re Chrome extensions that allow the user to view properly formatted Markdown files locally and offline. (One example is https://chrome.google.com/webstore/detail/markdown-reader/gpoigdifkoadgajcincpilkjmejcaanc, but this request is not to grab this one in particular.)
Formats like Markdown and LaTeX are very popular and have widespread support online, from simple TODO lists all the way to documentation of software projects and very popular QA sites (e.g. StackOverflow, MathOverflow, etc.).
I think adding the ability to display local/offline files written using Markdown and LaTeX (for math symbols, etc.) would be a great addition to the brave ecosystem.
Brave: 0.19.53 rev: e09025bf61debc46c03459def2501b3367f182d7 Muon: 4.4.29 libchromiumcontent: 61.0.3163.100 V8: 6.1.534.41 Node.js: 7.9.0 Update Channel: Release OS Platform: Linux OS Release: 4.10.0-35-generic OS Architecture: x64