SVG - iconsets - dark/light mode not working

The dark/light mode mechanics for SVG's is not working when they are placed in an iconset.
here is example set to check (3 simple nav bar icons, put at top to see changes)
test (32px & 22px).dis (821 Bytes)

It seems to be working here:

Dark mode:
image

Light Mode:
image

Seems ok here too, what makes you think it's not working?