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diff --git a/runtime/queries/heex/highlights.scm b/runtime/queries/heex/highlights.scm
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+++ b/runtime/queries/heex/highlights.scm
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+; https://github.com/connorlay/tree-sitter-heex/blob/592e22292a367312c35e13de7fdb888f029981d6/queries/highlights.scm
+; HEEx delimiters
+[
+  "<!"
+  "<!--"
+  "<"
+  "<%!--"
+  "<%#"
+  ">"
+  "</"
+  "--%>"
+  "-->"
+  "/>"
+  "{"
+  "}"
+  ; These could be `@keyword`s but the closing `>` wouldn't be highlighted
+  ; as `@keyword`
+  "<:"
+  "</:"
+] @punctuation.bracket
+
+; Non-comment or tag delimiters
+[
+  "<%"
+  "<%="
+  "<%%="
+  "%>"
+] @keyword
+
+; HEEx operators are highlighted as such
+"=" @operator
+
+; HEEx inherits the DOCTYPE tag from HTML
+(doctype) @constant
+
+; HEEx comments are highlighted as such
+(comment) @comment
+
+; HEEx tags are highlighted as HTML
+(tag_name) @tag
+
+; HEEx slots are highlighted as atoms (symbols)
+(slot_name) @string.special.symbol
+
+; HEEx attributes are highlighted as HTML attributes
+(attribute_name) @attribute
+[
+  (attribute_value)
+  (quoted_attribute_value)
+] @string
+
+; HEEx components are highlighted as Elixir modules and functions
+(component_name
+  [
+    (module) @module
+    (function) @function
+    "." @punctuation.delimiter
+  ])