This file is indexed.

/usr/share/movit/texture1d.frag is in libmovit2 1.1.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#ifdef GL_ES
precision highp float;
#endif

uniform sampler2D tex;
varying vec2 tc;

void main()
{
	gl_FragColor = texture2D(tex, tc);  // Second component is irrelevant.
}