Color Scheme Additions

This feature is only available for premium users.

Augment languages highlighting capabilities.


This feature is much more oriented development than the others as it provides new features for the Color Schemes rather than the UI. Basically it adds more customization to the Color Schemes by providing more syntax highlighting options than the original bundled ones, thus enhancing visual grepping.

JavaScript Additions
JavaScript Additions


At the moment the only supported languages are:

  • JavaScript
  • TypeScript
  • Java
  • PHP
  • Kotlin

More will come in the future.


The following keywords are customizable:

  • this, super
  • import, export, module, from
  • null, undefined
  • debugger
  • console
  • var, let, const
  • function
  • true, false

New from 6.3.0:

  • Globals: window, document, global
  • Primitives: NaN
  • Keywords:
    • abstract, class, extends, implements
    • async, await
    • constructor
    • static
    • get, set
    • if, else, for, while, do
    • in, of, instanceof, typeof, as
    • default
    • new, throw
    • return, yield
    • try, catch, finally
  • Other: prototype


TypeScript augments JavaScript additions with the following keywords:

  • private, public, protected
  • declare
  • type, alias

New from 6.3.0:

  • Keywords:
    • declare, namespace
    • enum
    • keyof
    • readonly
    • type, interface, alias
  • Types:
    • any, unknown, never
    • string, boolean, number, object, symbol, bigint, void


The following keywords are customizable:

  • private, public, protected
  • static, final
  • this, super
  • package, import
  • null, true, false

PHP (since 4.1)

The following keywords are customizable:

  • $this and self
  • function
  • private, public and protected
  • static, final
  • use, namespace
  • true, false
  • echo
  • exit, die

Kotlin (since 5.3)

The following keywords are customizable

  • import, package
  • object, companion
  • operator, infix
  • data
  • private, public, protected, internal
  • sealed, override, open
  • this, super
  • null, Unit
  • true, false

Enforce Highlighting

Due to a limitation in JetBrains’ syntax highlighting, some additions might not be highlighted as expected, as the language’s highlighting will take precedence over the additions. To remedy that, a setting has been added in the Material Theme Settings, Enforce Highlighting, which would give the language additions higher precedence by making them appear as Weak Warnings.

Enforce Highlighting
Enforce Highlighting

This, of course, has the side effect of adding a lot of “fake errors”, therefore, it’s disabled by default.

Disabling the feature

Just like other features, you can also disable language additions if you don’t need them for performance reasons or simply if you don’t like them.

You can find the setting under Material Theme Settings > Other Tweaks tab.


Q: The feature doesn’t work! My var/this/debugger keywords are still the same color as the others! By the way I’m using Darcula/IntelliJ/My custom scheme.

A: Since these are Additions, of course other schemes are unaware of these new entries and willrevert back to the default keyword color. However, color scheme designers can provide their own color definitions for the new entries if they choose to Export scheme after having selected their colors, and it will work for people having the plugin installed.

Q: What about Night Owl’s own additions? Won’t it clash with Material Theme’s?

A: The Material Theme Additions are using the same keys as the Night Owl Additions, while adding new ones. Therefore, assigning a color in the plugin’s page will work for NightOwl and vice-versa.