ZenFS: Match encumberance colors

[alef]

Use break values from display::encumb_color for graph widget

Summary

Interface "ZenFS: Match encumberance colors"

Purpose of change

In the Meters; slim panel for ZenFS' think style, the Encum color did not match the color in Graphs & meters. For instance for the torso, it was green in the former while yellow in the latter.

Describe the solution

Use the same colors and breaks as in

Cataclysm-DDA/src/display.cpp

Line 840 in 3135a6a

nc_color display::encumb_color( const int level )

.

Describe alternatives you've considered

N/A

Testing

It was green. Edit the .json, relaunched the game, now it's yellow:

Additional context

N/A