Created attachment 868101 [details]
I think the family property should only be Noto Sans Display and Noto Serif Display for the display versions of the fonts

Hello,

I noticed that in mpv after changing my default preferences for system sans-serif font I get Noto Sans Display, even though I've set it to normal Noto Sans.

When I go to the kde font viewer there is only the Noto Sans font family, but there is no Noto Sans Display. 

With Noto Serif there is Noto Serif Display, but there are only italic versions of the font.

My guess is that the display versions of the fonts shouldn't be in the normal Noto Sans/Noto Serif families. They should be a different family named Noto Sans Display/Noto Serif Display.

The Noto Serif Display is a different family in the kde font viewer, but comparing the output of fc-match -a "Noto Serif" and fc-match -a "Noto Sans" gives something interesting: the display versions of the fonts belong to the normal noto font families, so when I want it to match "Noto Sans" I get the one that is alphabetically the first one (will give output in attachment). The serif one gets matched with the regular one first as the names of the noto serif display and noto sans display fonts are without and with a hyphen between the display in the font file name (alphabetically first is "-", "D" is after).

The terminal output shows what is going on with the families.

Thanks for any help