[Feature request] Automatic syntax detection with coloring

I would like to propose a feature, with would make it easier to look over the code in the contributions - automatic detection of syntax and coloring it coloring. Additionally, in the case of impropper detection, the contributor should have possibility to set it manually. There are some files with are improperly reorganised by (for example) editors, even if the syntax points to a specific programming or scripting language. One of the examples is the “bash.bashrc” file, with is a bash script, but it beeing wrongly asigned