/usr/share/openwalnut/shaders/ is in libopenwalnut1 1.2.5-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/openwalnut/shaders/WGEColorMaps.glsl
/usr/share/openwalnut/shaders/WGEColorMapsImproved.glsl
/usr/share/openwalnut/shaders/WGEColormapping-fragment.glsl
/usr/share/openwalnut/shaders/WGEColormapping-uniforms.glsl
/usr/share/openwalnut/shaders/WGEColormapping-varyings.glsl
/usr/share/openwalnut/shaders/WGEColormapping-vertex.glsl
/usr/share/openwalnut/shaders/WGECoordinateSystem-fragment.glsl
/usr/share/openwalnut/shaders/WGECoordinateSystem-vertex.glsl
/usr/share/openwalnut/shaders/WGELighting-fragment.glsl
/usr/share/openwalnut/shaders/WGELighting-vertex.glsl
/usr/share/openwalnut/shaders/WGEPostprocessing.glsl
/usr/share/openwalnut/shaders/WGEPostprocessor-fragment.glsl
/usr/share/openwalnut/shaders/WGEPostprocessor-vertex.glsl
/usr/share/openwalnut/shaders/WGEShadingTools.glsl
/usr/share/openwalnut/shaders/WGETensorTools.glsl
/usr/share/openwalnut/shaders/WGETextureTools.glsl
/usr/share/openwalnut/shaders/WGETransformationTools.glsl
/usr/share/openwalnut/shaders/WGEUtils.glsl