This file is indexed.

/usr/share/gwyddion/gradients/Cold is in gwyddion-common 2.50-2.

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

The actual contents of the file can be viewed below.

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Gwyddion resource GwyGradient
0 0 0 0 1
0.3 0.168223 0.27335 0.488636 1
0.5 0.196294 0.404327 0.606061 1
0.7 0.3388 0.673882 0.77 1
0.9 0.90909 0.909091 0.90909 1
1 1 1 1 1