How to change sidebar font size in SublimeText3

30 May 2016

For the ST3 users who don’t have the Default.sublime-theme file (which is actually the default configuration), the simplest procedure is:

  1. Navigate to Sublime Text -> Preferences -> Browse Packages
  2. Open the User directory
  3. Create a file named Default.sublime-theme (if you’re using the default theme, otherwise use the theme name, e.g. Material-Theme-Darker.sublime-theme) with the following content:

Modify font.size as required

[
    {
        "class": "sidebar_label",
        "color": [0, 0, 0],
        "font.bold": false,
        "font.size": 12
    },
]