This feature is only available for premium users.
Augment languages highlighting capabilities.
Intro
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.

Additions
At the moment the only supported languages are:
- JavaScript
- TypeScript
- Java
- PHP
- Kotlin
- Python
- Ruby
- Go
More will come in the future.
JavaScript
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
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
Java
The following keywords are customizable:
private
,public
,protected
static
,final
this
,super
package
,import
null
,true
,false
PHP
The following keywords are customizable:
$this
andself
function
private
,public
andprotected
static
,final
use
,namespace
true
,false
echo
exit
,die
Kotlin
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
Python
The following keywords are customizable:
if
,elif
,else
,while
,for
anddo
def
andclass
with
import
,from
andas
try
,except
, andfinally
return
andyield
raise
True
,False
and `Noneprint
Ruby
Keywords:
begin
,rescue
,finally
case
when
class
def
do
if
,elsif
,else
,unless
module
,namespace
not
,and
,or
private
,protected
,public
raise
require
,require_self
,require_relative
return
,yield
self
while
,until
,loop
Primitives:
nil
true
,false
Methods:
attr_reader
,attr_writer
,attr_accessor
initialize
new
puts
Go
Available since 7.9.0
Functions:
main
make
len
,cap
Print
,Println
,Printf
Keywords:
import
,package
func
if
,else
switch
,case
,default
,fallthrough
for
,range
,map
return
var
,const
type
defer
struct
interface
go
,select
chan
Primitives:
nil
true
,false
Enforce highlighting (deprecated since 7.10.0)
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.

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
.
FAQ
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 would be unaware of these new entries and would revert 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.