/usr/share/scilab/modules/scicos/palettes/ is in scilab-data 6.0.1-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/scilab/modules/scicos/palettes/Branching.cosf
/usr/share/scilab/modules/scicos/palettes/DemoBlocks.cosf
/usr/share/scilab/modules/scicos/palettes/Events.cosf
/usr/share/scilab/modules/scicos/palettes/Integer.cosf
/usr/share/scilab/modules/scicos/palettes/Linear.cosf
/usr/share/scilab/modules/scicos/palettes/Matrix.cosf
/usr/share/scilab/modules/scicos/palettes/Non_linear.cosf
/usr/share/scilab/modules/scicos/palettes/OldBlocks.cosf
/usr/share/scilab/modules/scicos/palettes/Others.cosf
/usr/share/scilab/modules/scicos/palettes/Sinks.cosf
/usr/share/scilab/modules/scicos/palettes/Sources.cosf
/usr/share/scilab/modules/scicos/palettes/Threshold.cosf