diff --git a/ci/licenses_golden/tool_signature b/ci/licenses_golden/tool_signature
index 16527fe6563b4..65fb31c25c8f5 100644
--- a/ci/licenses_golden/tool_signature
+++ b/ci/licenses_golden/tool_signature
@@ -1,2 +1,2 @@
-Signature: cb8556d451f3040815fe5ee661d5dbad
+Signature: e2ee4730163d78d2bccaf0b4ceb5cbcf
 
diff --git a/tools/licenses/lib/filesystem.dart b/tools/licenses/lib/filesystem.dart
index 071ad10b578db..ba1d17ce19472 100644
--- a/tools/licenses/lib/filesystem.dart
+++ b/tools/licenses/lib/filesystem.dart
@@ -70,20 +70,21 @@ bool isMultiLicenseNotice(Reader reader) {
 }
 
 FileType identifyFile(String name, Reader reader) {
+  final List<String> pathComponents = path.split(name);
   List<int>? bytes;
-  if ((path.split(name).reversed.take(6).toList().reversed.join('/') == 'third_party/icu/source/extra/uconv/README') || // This specific ICU README isn't in UTF-8.
-      (path.split(name).reversed.take(6).toList().reversed.join('/') == 'third_party/icu/source/samples/uresb/sr.txt') || // This specific sample contains non-UTF-8 data (unlike other sr.txt files).
-      (path.split(name).reversed.take(2).toList().reversed.join('/') == 'builds/detect.mk') || // This specific freetype sample contains non-UTF-8 data (unlike other .mk files).
-      (path.split(name).reversed.take(3).toList().reversed.join('/') == 'third_party/cares/cares.rc')) {
+  if ((pathComponents.reversed.take(6).toList().reversed.join('/') == 'third_party/icu/source/extra/uconv/README') || // This specific ICU README isn't in UTF-8.
+      (pathComponents.reversed.take(6).toList().reversed.join('/') == 'third_party/icu/source/samples/uresb/sr.txt') || // This specific sample contains non-UTF-8 data (unlike other sr.txt files).
+      (pathComponents.reversed.take(2).toList().reversed.join('/') == 'builds/detect.mk') || // This specific freetype sample contains non-UTF-8 data (unlike other .mk files).
+      (pathComponents.reversed.take(3).toList().reversed.join('/') == 'third_party/cares/cares.rc')) {
     return FileType.latin1Text;
   }
-  if (path.split(name).reversed.take(6).toList().reversed.join('/') == 'dart/runtime/tests/vm/dart/bad_snapshot') { // Not any particular format
+  if (pathComponents.reversed.take(6).toList().reversed.join('/') == 'dart/runtime/tests/vm/dart/bad_snapshot') { // Not any particular format
     return FileType.binary;
   }
-  if (path.split(name).reversed.take(9).toList().reversed.join('/') == 'fuchsia/sdk/linux/dart/zircon/lib/src/fakes/handle_disposition.dart' || // has bogus but benign "authors" reference, reported to jamesr@
-      path.split(name).reversed.take(6).toList().reversed.join('/') == 'third_party/angle/src/common/fuchsia_egl/fuchsia_egl.c' || // has bogus but benign "authors" reference, reported to author and legal team
-      path.split(name).reversed.take(6).toList().reversed.join('/') == 'third_party/angle/src/common/fuchsia_egl/fuchsia_egl.h' || // has bogus but benign "authors" reference, reported to author and legal team
-      path.split(name).reversed.take(6).toList().reversed.join('/') == 'third_party/angle/src/common/fuchsia_egl/fuchsia_egl_backend.h') { // has bogus but benign "authors" reference, reported to author and legal team
+  if (pathComponents.reversed.take(9).toList().reversed.join('/') == 'fuchsia/sdk/linux/dart/zircon/lib/src/fakes/handle_disposition.dart' || // has bogus but benign "authors" reference, reported to jamesr@
+      pathComponents.reversed.take(6).toList().reversed.join('/') == 'third_party/angle/src/common/fuchsia_egl/fuchsia_egl.c' || // has bogus but benign "authors" reference, reported to author and legal team
+      pathComponents.reversed.take(6).toList().reversed.join('/') == 'third_party/angle/src/common/fuchsia_egl/fuchsia_egl.h' || // has bogus but benign "authors" reference, reported to author and legal team
+      pathComponents.reversed.take(6).toList().reversed.join('/') == 'third_party/angle/src/common/fuchsia_egl/fuchsia_egl_backend.h') { // has bogus but benign "authors" reference, reported to author and legal team
     return FileType.binary;
   }
   final String base = path.basename(name);
@@ -93,7 +94,7 @@ FileType identifyFile(String name, Reader reader) {
       return FileType.notPartOfBuild;
     } // The ._* files in Mac OS X archives that gives icons and stuff
   }
-  if (path.split(name).contains('cairo')) {
+  if (pathComponents.contains('cairo')) {
     bytes ??= reader();
     // "Copyright <latin1 copyright symbol> "
     if (hasSubsequence(bytes, <int>[0x43, 0x6f, 0x70, 0x79, 0x72, 0x69, 0x67, 0x68, 0x74, 0x20, 0xA9, 0x20], kMaxSize)) {
@@ -241,6 +242,7 @@ FileType identifyFile(String name, Reader reader) {
     case '.icc': return FileType.binary; // Color profile
     case '.swp': return FileType.binary; // Vim swap file
     case '.bfbs': return FileType.binary; // Flatbuffers Binary Schema
+    case '.rom': return FileType.binary;
     // Archives
     case '.zip': return FileType.zip; // ZIP
     case '.tar': return FileType.tar; // Tar