There is an assumption. Have you looked on your own GitHub? The highlighting is very different from the IntelliJ default or even your own customization. Pay attention to how inconsistently GitHub highlights class members. And even if that bothers you, do you really want to have to pull every GitHub repository you want to look at to your own machine just so that you can take a quick look at it with better syntax highlighting? The five keystrokes of "`this.`" are a tiny price to pay for clarity that doesn't assume everyone is looking at your source in the same way that you do.