diff --git a/build/generate-latex-grammars.js b/build/generate-latex-grammars.js
index 838e8d4..5f2bf13 100644
--- a/build/generate-latex-grammars.js
+++ b/build/generate-latex-grammars.js
@@ -148,8 +148,8 @@ function generateMintedBlock(envNames, language, source, contentName=undefined)
 }
 
 /**
- * Generate the json rules for a minted type block
- * @param {string[]} envNames Typically minted
+ * Generate the json rules for a robust externalize type block
+ * @param {string[]} envNames Typically CacheMeCode
  * @param {string[]} language A list of languages used to build an alternation
  * @param {string} source The source language to include
  * @param {string} contentName The scope to assign to the content. If undefined, use {@link source}
diff --git a/syntaxes/LaTeX.tmLanguage.json b/syntaxes/LaTeX.tmLanguage.json
index c3b5619..708ee12 100644
--- a/syntaxes/LaTeX.tmLanguage.json
+++ b/syntaxes/LaTeX.tmLanguage.json
@@ -1881,6 +1881,64 @@
                 }
             ]
         },
+        {
+            "begin": "((\\\\)cacheMeCode(?=\\[))",
+            "end": "\\}",
+            "beginCaptures": {
+                "1": {
+                    "name": "support.function.verb.latex"
+                },
+                "2": {
+                    "name": "punctuation.definition.function.latex"
+                }
+            },
+            "endCaptures": {
+                "0": {
+                    "name": "punctuation.definition.arguments.end.latex"
+                }
+            },
+            "patterns": [
+                {
+                    "begin": "\\G(\\[)",
+                    "beginCaptures": {
+                        "1": {
+                            "name": "punctuation.definition.arguments.optional.begin.latex"
+                        }
+                    },
+                    "end": "(?=\\})",
+                    "patterns": [
+                        {
+                            "begin": "\\G",
+                            "end": "(\\])(?=\\{)",
+                            "endCaptures": {
+                                "1": {
+                                    "name": "punctuation.definition.arguments.optional.end.latex"
+                                }
+                            },
+                            "patterns": [
+                                {
+                                    "include": "text.tex#braces"
+                                },
+                                {
+                                    "include": "$base"
+                                }
+                            ]
+                        },
+                        {
+                            "begin": "(?<=\\])(\\{)",
+                            "end": "(?=\\})",
+                            "beginCaptures": {
+                                "0": {
+                                    "name": "punctuation.definition.arguments.begin.latex"
+                                }
+                            },
+                            "contentName": "meta.function.embedded.latex",
+                            "name": "meta.embedded.block.generic.latex"
+                        }
+                    ]
+                }
+            ]
+        },
         {
             "begin": "((\\\\)addplot)(?:\\+?)((?:\\[[^\\[]*\\]))*\\s*(gnuplot)\\s*((?:\\[[^\\[]*\\]))*\\s*(\\{)",
             "captures": {
diff --git a/syntaxes/src/LaTeX.tmLanguage.base.yaml b/syntaxes/src/LaTeX.tmLanguage.base.yaml
index 2d01021..0e6b87d 100644
--- a/syntaxes/src/LaTeX.tmLanguage.base.yaml
+++ b/syntaxes/src/LaTeX.tmLanguage.base.yaml
@@ -155,6 +155,69 @@ patterns:
     contentName: meta.function.embedded.latex
     end: ^\s*(?=\\end\{terminal\*?\})
     name: meta.embedded.block.generic.latex
+- begin: ((\\)cacheMeCode(?=\[))
+  end: \}
+  beginCaptures:
+    '1':
+      name: support.function.verb.latex
+    '2':
+      name: punctuation.definition.function.latex
+  endCaptures:
+    '0':
+      name: punctuation.definition.arguments.end.latex
+  patterns:
+  - begin: \G(\[)
+    beginCaptures:
+      '1':
+        name: punctuation.definition.arguments.optional.begin.latex
+    end: (?=\})
+    patterns:
+    - begin: \G
+      end: (\])(?=\{)
+      endCaptures:
+        '1':
+          name: punctuation.definition.arguments.optional.end.latex
+      patterns:
+      - include: text.tex#braces
+      - include: $base
+    - begin: (?<=\])(\{)
+      end: (?=\})
+      beginCaptures:
+        '0':
+          name: punctuation.definition.arguments.begin.latex
+      patterns:
+      - include: text.tex#braces
+      contentName: meta.function.embedded.latex
+      name: meta.embedded.block.generic.latex
+# - begin: ((\\)cacheMeCode(?=\[))
+#   end: (?<=\})
+#   beginCaptures:
+#     '1':
+#       name: support.function.verb.latex
+#     '2':
+#       name: punctuation.definition.function.latex
+#   patterns:
+#   - begin: \[
+#     end: \]
+#     beginCaptures:
+#       '0':
+#         name: punctuation.definition.arguments.optional.begin.latex
+#     endCaptures:
+#       '0':
+#         name: punctuation.definition.arguments.optional.end.latex
+#     patterns:
+#     - include: text.tex#braces
+#     - include: $base
+#   - begin: (?<=\])\{
+#     end: \}
+#     beginCaptures:
+#       '0':
+#         name: punctuation.definition.arguments.begin.latex
+#     endCaptures:
+#       '0':
+#         name: punctuation.definition.arguments.end.latex
+#     contentName: meta.function.embedded.latex
+#     name: meta.embedded.block.generic.latex
 - begin: ((\\)addplot)(?:\+?)((?:\[[^\[]*\]))*\s*(gnuplot)\s*((?:\[[^\[]*\]))*\s*(\{)
   captures:
     '1':