message: highlight \label in math environments.
diff: <key>name</key>
  <string>keyword.control.equation.newline.latex</string>
  </dict>
  + <dict>
  + <key>include</key>
  + <string>#definition-label</string>
  + </dict>
  <dict>
  <key>include</key>
  <string>text.tex#math</string>
  @@ -1491,47 +1495,8 @@ Put specific matches for particular LaTeX keyword.functions before the last two
  </array>
  </dict>
  <dict>
  - <key>begin</key>
  - <string>((\\)label)(\{)</string>
  - <key>beginCaptures</key>
  - <dict>
  - <key>1</key>
  - <dict>
  - <key>name</key>
  - <string>keyword.control.label.latex</string>
  - </dict>
  - <key>2</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.keyword.latex</string>
  - </dict>
  - <key>3</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.arguments.begin.latex</string>
  - </dict>
  - </dict>
  - <key>end</key>
  - <string>\}</string>
  - <key>endCaptures</key>
  - <dict>
  - <key>0</key>
  - <dict>
  - <key>name</key>
  - <string>punctuation.definition.arguments.end.latex</string>
  - </dict>
  - </dict>
  - <key>name</key>
  - <string>meta.definition.label.latex</string>
  - <key>patterns</key>
  - <array>
  - <dict>
  - <key>match</key>
  - <string>[a-zA-Z0-9\.,:/*!^_-]</string>
  - <key>name</key>
  - <string>variable.parameter.definition.label.latex</string>
  - </dict>
  - </array>
  + <key>include</key>
  + <string>#definition-label</string>
  </dict>
  <dict>
  <key>begin</key>
  @@ -1836,6 +1801,50 @@ Put specific matches for particular LaTeX keyword.functions before the last two
  </dict>
  </array>
  </dict>
  + <key>definition-label</key>
  + <dict>
  + <key>begin</key>
  + <string>((\\)label)(\{)</string>
  + <key>beginCaptures</key>
  + <dict>
  + <key>1</key>
  + <dict>
  + <key>name</key>
  + <string>keyword.control.label.latex</string>
  + </dict>
  + <key>2</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.keyword.latex</string>
  + </dict>
  + <key>3</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.arguments.begin.latex</string>
  + </dict>
  + </dict>
  + <key>end</key>
  + <string>\}</string>
  + <key>endCaptures</key>
  + <dict>
  + <key>0</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.arguments.end.latex</string>
  + </dict>
  + </dict>
  + <key>name</key>
  + <string>meta.definition.label.latex</string>
  + <key>patterns</key>
  + <array>
  + <dict>
  + <key>match</key>
  + <string>[a-zA-Z0-9\.,:/*!^_-]</string>
  + <key>name</key>
  + <string>variable.parameter.definition.label.latex</string>
  + </dict>
  + </array>
  + </dict>
  </dict>
  <key>scopeName</key>
  <string>text.tex.latex</string>
  