FM / conf.avail

/usr/share/fontconfig/conf.avail

Name	Size	Mode	Actions
10-autohint.conf	706	0644	edit dl rm
10-hinting-full.conf	692	0644	edit dl rm
10-hinting-medium.conf	696	0644	edit dl rm
10-hinting-none.conf	692	0644	edit dl rm
10-hinting-slight.conf	696	0644	edit dl rm
10-no-sub-pixel.conf	723	0644	edit dl rm
10-scale-bitmap-fonts.conf	2228	0644	edit dl rm
10-sub-pixel-bgr.conf	748	0644	edit dl rm
10-sub-pixel-rgb.conf	748	0644	edit dl rm
10-sub-pixel-vbgr.conf	758	0644	edit dl rm
10-sub-pixel-vrgb.conf	758	0644	edit dl rm
10-unhinted.conf	701	0644	edit dl rm
11-lcdfilter-default.conf	771	0644	edit dl rm
11-lcdfilter-legacy.conf	768	0644	edit dl rm
11-lcdfilter-light.conf	765	0644	edit dl rm
20-unhint-small-dejavu-sans-mono.conf	866	0644	edit dl rm
20-unhint-small-vera.conf	1537	0644	edit dl rm
25-unhint-nonlatin.conf	3489	0644	edit dl rm
30-metric-aliases.conf	13274	0644	edit dl rm
40-nonlatin.conf	5424	0644	edit dl rm
45-generic.conf	3543	0644	edit dl rm
45-latin.conf	6600	0644	edit dl rm
49-sansserif.conf	799	0644	edit dl rm
50-user.conf	911	0644	edit dl rm
51-local.conf	423	0644	edit dl rm
57-dejavu-sans-mono.conf	1509	0644	edit dl rm
59-liberation-mono.conf	482	0644	edit dl rm
60-generic.conf	2041	0644	edit dl rm
60-latin.conf	2068	0644	edit dl rm
61-urw-bookman.conf	1021	0644	edit dl rm
61-urw-c059.conf	1003	0644	edit dl rm
61-urw-d050000l.conf	1022	0644	edit dl rm
61-urw-fallback-backwards.conf	3257	0644	edit dl rm
61-urw-gothic.conf	913	0644	edit dl rm
61-urw-nimbus-mono-ps.conf	899	0644	edit dl rm
61-urw-nimbus-roman.conf	877	0644	edit dl rm
61-urw-nimbus-sans.conf	1574	0644	edit dl rm
61-urw-p052.conf	975	0644	edit dl rm
61-urw-standard-symbols-ps.conf	1061	0644	edit dl rm
61-urw-z003.conf	865	0644	edit dl rm
65-fonts-persian.conf	10293	0644	edit dl rm
65-google-droid-sans.conf	7170	0644	edit dl rm
65-khmer.conf	464	0644	edit dl rm
65-nonlatin.conf	8172	0644	edit dl rm
69-unifont.conf	847	0644	edit dl rm
70-no-bitmaps.conf	487	0644	edit dl rm
70-yes-bitmaps.conf	487	0644	edit dl rm
80-delicious.conf	597	0644	edit dl rm
90-synthetic.conf	1917	0644	edit dl rm

Edit: /usr/share/fontconfig/conf.avail/60-generic.conf (2041B)

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
  <its:rules xmlns:its="http://www.w3.org/2005/11/its" version="1.0">
    <its:translateRule translate="no" selector="/fontconfig/*[not(self::description)]"/>
  </its:rules>

<description>Set preferable fonts for emoji/math fonts</description>

<match>
		<test name="lang">
			<string>und-zsye</string>
		</test>
		<test qual="all" name="color" compare="not_eq">
			<bool>true</bool>
		</test>
		<test qual="all" name="color" compare="not_eq">
			<bool>false</bool>
		</test>
		<edit name="color" mode="append">
			<bool>true</bool>
		</edit>
	</match>

<alias binding="same">
		<family>emoji</family>
		<prefer>
			
			<family>Noto Color Emoji</family> 
			<family>Apple Color Emoji</family> 
			<family>Segoe UI Emoji</family> 
			<family>Twitter Color Emoji</family> 
			<family>EmojiOne Mozilla</family> 
			
			<family>Emoji Two</family>
			<family>Emoji One</family>
			
			<family>Noto Emoji</family> 
			<family>Android Emoji</family> 
		</prefer>
	</alias>

<alias binding="same">
		
		<family>math</family>
		<prefer>
			<family>XITS Math</family> 
			<family>STIX Two Math</family> 
			<family>Cambria Math</family> 
			<family>Latin Modern Math</family> 
			<family>Minion Math</family> 
			<family>Lucida Math</family> 
			<family>Asana Math</family>
		</prefer>
	</alias>

</fontconfig>

Set preferable fonts for emoji/math fonts und-zsye true false true emoji Noto Color Emoji Apple Color Emoji Segoe UI Emoji Twitter Color Emoji EmojiOne Mozilla Emoji Two Emoji One Noto Emoji Android Emoji math XITS Math STIX Two Math Cambria Math Latin Modern Math Minion Math Lucida Math Asana Math