This file is indexed.

/usr/share/gwyddion/gradients/Warm is in gwyddion-common 2.38-2.

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
0.25 0.484848 0.188417 0.266572 1
0.45 0.76 0.1824 0.1824 1
0.6 0.87 0.495587 0.1131 1
0.75 0.89 0.751788 0.1068 1
0.9 0.90909 0.909091 0.90909 1
1 1 1 1 1