It concerns the visualization of the CAT index:
EDR is the cube root of the energy dissipation rate with the unit m^2/3 s^-1.
Normally, the range of plotted values should be between 0 and 0.5, some people classify CAT according to threshold values:
0.05 < EDR < 0.12 light turbulence
0.12 < EDR < 0.18 light-to-moderate turbulence
0.18 < EDR < 0.30 moderate turbulence
EDR> moderate-to-severe turbulence
But there are variations in the threshold values.
See examples in these papers:
https://www.ecmwf.int/en/elibrary/81205-experimenting-clear-air-turbulence-cat-index-ifs
https://doi.org/10.1175/JAMC-D-13-0329.1
https://doi.org/10.1175/JAMC-D-19-0079.1

It would be great if you could adapt the EDR in Windy accordingly.
Andreas Dörnbrack