Add support for OpenSans and font-awesome fonts.

PiperOrigin-RevId: 833666932
Change-Id: I5f0207c3331705b9078a1297b3e7b2a8d363ad60

cmake/third_party_deps/font_awesome.cmake

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+# Copyright 2025 DeepMind Technologies Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set(MUJOCO_DEP_VERSION_font_awesome
+    a8386aae19e200ddb0f6845b5feeee5eb7013687
+    CACHE STRING "Tag/version of `font_awesome` to be fetched."
+)
+mark_as_advanced(MUJOCO_DEP_VERSION_font_awesome)
+
+include(FindOrFetch)
+
+fetchpackage(
+    PACKAGE_NAME  font_awesome
+    GIT_REPO      https://github.com/FortAwesome/Font-Awesome.git
+    GIT_TAG       ${MUJOCO_DEP_VERSION_font_awesome}
+    PATCH_COMMAND
+        "cp"
+        "${CMAKE_SOURCE_DIR}/cmake/third_party_deps/font_awesome/CMakeLists.txt"
+        "${FETCHCONTENT_BASE_DIR}/font_awesome-src/CMakeLists.txt"
+)

cmake/third_party_deps/font_awesome/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Copyright 2025 DeepMind Technologies Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Data-only package.

cmake/third_party_deps/opensans.cmake

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+# Copyright 2025 DeepMind Technologies Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set(MUJOCO_DEP_VERSION_opensans
+    3d45774008254746e09bce4f8922b515a7b6a26b
+    CACHE STRING "Tag/version of `opensans` to be fetched."
+)
+mark_as_advanced(MUJOCO_DEP_VERSION_opensans)
+
+include(FindOrFetch)
+
+fetchpackage(
+    PACKAGE_NAME  opensans
+    GIT_REPO      https://github.com/googlefonts/opensans.git
+    GIT_TAG       ${MUJOCO_DEP_VERSION_opensans}
+    PATCH_COMMAND
+        "cp"
+        "${CMAKE_SOURCE_DIR}/cmake/third_party_deps/opensans/CMakeLists.txt"
+        "${FETCHCONTENT_BASE_DIR}/opensans-src/CMakeLists.txt"
+)

cmake/third_party_deps/opensans/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Copyright 2025 DeepMind Technologies Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Data-only package.