Syntax Highlighting
In the object preview, Syntax highlighting using syntect is available.
To enable this, set preview.highlight = true in the config file.
Color Themes
You can change the color theme by specifying the theme name in preview.highlight_theme.
By default the following themes are available:
base16-ocean.darkbase16-eighties.darkbase16-mocha.darkbase16-ocean.lightInspiredGitHubSolarized (dark)Solarized (light)
Also, by creating xxx.tmTheme in $STU_ROOT_DIR/preview_theme/, you can use xxx and load it.
Syntax definitions
You can add syntax definitions for file types that are not supported by default.
You can use it by creating a .sublime-syntax file in $STU_ROOT_DIR/preview_syntax/.