manjaro font rendering settings (infinality like) -- export FREETYPE_PROPERTIES="truetype:interpreter-version=40" (default)

local.conf

<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
	<match target="pattern">
	    <edit mode="assign" name="dpi">96</edit>
	</match>
	<match target="font">
	    <edit name="antialias" mode="assign">
	        <bool>true</bool>
	    </edit>
	    <edit name="autohint" mode="assign">
	        <bool>false</bool>
	    </edit>
	    <edit name="embeddedbitmap" mode="assign">
	        <bool>false</bool>
	    </edit>
	    <edit name="hinting" mode="assign">
	        <bool>true</bool>
	    </edit>
	    <edit name="hintstyle" mode="assign">
	        <const>hintfull</const>
	    </edit>
	    <edit mode="assign" name="lcdfilter">
	        <const>lcddefault</const>
	    </edit>
	    <edit name="rgba" mode="assign">
	        <const>rgb</const>
	    </edit>
	</match>

		<!-- Default fonts - Linux Appearance -->
	<alias>
		<family>sans-serif</family>
		<prefer>
			<family>Arial</family>
		</prefer>
	</alias>
	<alias>
		<family>serif</family>
		<prefer>
			<family>Times New Roman</family>
		</prefer>
	</alias>
	<alias>
		<family>monospace</family>
		<prefer>
			<family>Courier New</family>
		</prefer>
	</alias>
		<alias>
		<family>Roboto</family>
		<prefer>
			<family>Arial</family>
		</prefer>
	</alias>

	<match target="pattern">
		<test name="family">
			<string>Cantarell</string>
		</test>
		<edit name="family" mode="assign" binding="strong">
			<string>Cantarell</string>
		</edit>
	</match>

	<match target="font">
		<test name="do_substitutions">
			<bool>true</bool>
		</test>
		<test name="family">
			<string>serif</string>
		</test>
		<edit name="family" mode="assign">
			<string>Times New Roman</string>
		</edit>
	</match>
	<match target="font">
		<test name="do_substitutions">
			<bool>true</bool>
		</test>
		<test name="family">
			<string>monospace</string>
		</test>
		<edit name="family" mode="assign">
			<string>Courier New</string>
		</edit>
	</match>

	<match target="font">
		<test name="do_substitutions">
			<bool>true</bool>
		</test>
		<test name="family">
			<string>Roboto Mono</string>
		</test>
		<edit name="family" mode="assign">
			<string>Courier New</string>
		</edit>
	</match>
	
	<match target="font">
		<test name="do_substitutions">
			<bool>true</bool>
		</test>
		<test name="family">
			<string>Roboto</string>
		</test>
		<edit name="family" mode="assign">
			<string>Arial</string>
		</edit>
	</match>

	<match target="font">
		<test name="do_substitutions">
			<bool>true</bool>
		</test>
		<test name="family">
			<string>Roboto Mono</string>
		</test>
		<edit name="family" mode="assign">
			<string>Arial</string>
		</edit>
	</match>

	<match target="font">
		<test name="do_substitutions">
			<bool>true</bool>
		</test>
		<test name="family">
			<string>Slack-Lato</string>
		</test>
		<edit name="family" mode="assign">
			<string>Courier New</string>
		</edit>
	</match>

	<match target="font">
		<test name="slant">
			<const>roman</const>
		</test>
		<test target="pattern" name="slant" compare="not_eq">
			<const>roman</const>
		</test>
		<test name="scalable">
			<bool>false</bool>
		</test>
		<edit name="slant" mode="assign">
			<const>oblique</const>
		</edit>
	</match>
	
	<match target="font">
		<test name="weight" compare="less_eq">
			<const>medium</const>
		</test>
		<test target="pattern" name="weight" compare="more">
			<const>medium</const>
		</test>
		<test name="scalable">
			<bool>false</bool>
		</test>
		<edit name="weight" mode="assign">
			<const>bold</const>
		</edit>
	</match>
	
	<!-- Prevent bold-ish fonts from being emboldened -->
	<match target="font">
		<test name="weight" compare="more_eq">
			<const>semibold</const>
		</test>
		<test target="pattern" name="weight">
			<const>bold</const>
		</test>
		<edit name="weight" mode="assign">
			<const>bold</const>
		</edit>
	</match>

	<!-- Prevent thin-ish fonts from being emboldened -->
	<match target="font">
		<test name="weight" compare="less">
			<const>book</const>
		</test>
		<test target="pattern" name="weight">
			<const>bold</const>
		</test>
		<edit name="weight" mode="assign">
			<const>bold</const>
		</edit>
	</match>
	
	<match target="pattern">
		<test target="font" name="family">
			<string>f</string>
		</test>

		<!-- match requests for non-roman face -->
		<test name="slant" compare="not_eq">
			<const>roman</const>
		</test>

		<!-- remember that this should be slanted -->
		<edit name="fake_slant" mode="assign">
			<bool>true</bool>
		</edit>

		<!--- change to match a roman face instead -->
		<edit name="slant" mode="assign">
			<const>roman</const>
		</edit>
	</match>

	<!-- Force flagged fonts to have artificial oblique -->
	<match target="font">
		<!-- check to see if the font is roman -->
		<test name="slant">
			<const>roman</const>
		</test>
		<!-- look for fonts which were marked for fake obliquing -->
		<test name="fake_slant">
			<bool>true</bool>
		</test>
		<!-- multiply the matrix to slant the font -->
		<edit name="matrix" mode="assign">
			<times>
				<name>matrix</name>
				<matrix>
					<double>1.0</double>
					<double>0.2</double>
					<double>0</double>
					<double>1</double>
				</matrix>
			</times>
		</edit>
		<!-- pretend the font is oblique now -->
		<edit name="slant" mode="assign">
			<const>oblique</const>
		</edit>
	</match>


	<!-- Force fake bold instead of the font's default bold -->
	<!-- In rare cases this is more visually appealing -->
	<!-- !!!! Somehow this breaks Qt unfortunately !!!! -->
	<!-- Set the flag -->
	<match target="pattern">
		<test name="family">
			<string>Courier New</string>
		</test>

		<!-- match requests for bold face -->
		<test name="weight" compare="more">
			<const>medium</const>
		</test>

		<!-- remember that this should be bolded -->
		<edit name="fake_bold" mode="assign">
			<bool>true</bool>
		</edit>

		<!--- change to match a medium weight instead -->
		<edit name="weight" mode="assign">
			<const>medium</const>
		</edit>
	</match>

	<!-- Force flagged fonts to have artificial bold -->
	<match target="font">
		<!-- look for fonts which were marked for fake bolding -->
		<test name="fake_bold">
			<bool>true</bool>
		</test>
		<!-- Set the embolden flag -->
		<edit name="embolden" mode="assign">
				<bool>true</bool>
		</edit>
		<!-- pretend the font is bold now -->
		<edit name="weight" mode="assign">
			<const>bold</const>
		</edit>
	</match>
	<match target="pattern">
		<test name="family">
			<string>Lucida Grande</string>
		</test>
		<test name="pixelsize" compare="eq">
			<double>9</double>
		</test>
		<edit name="family" mode="prepend" binding="same">
			<string>Arial</string>
		</edit>
	</match>

	<match target="pattern">
    	<test qual="any" name="family"><string>Consolas</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Courier New</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>Segoe UI</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>
  	
  	<match target="pattern">
    	<test qual="any" name="family"><string>Roboto</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	 <match target="pattern">
    	<test qual="any" name="family"><string>Noto Sans</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>Helvetica</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>Helvetica Neue</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	  	<match target="pattern">
    	<test qual="any" name="family"><string>"Helvetica Neue"</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>proxima-nova</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	  	<match target="pattern">
    	<test qual="any" name="family"><string>"proxima-nova"</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>Source Code Pro</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Courier New</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>sans-serif</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>

  	<match target="pattern">
    	<test qual="any" name="family"><string>Roboto Mono</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Courier New</string>
    	</edit>
  	</match>  	

  	<match target="pattern">
    	<test qual="any" name="family"><string>Roboto</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>  	

  	<match target="pattern">
    	<test qual="any" name="family"><string>RobotoDraft</string></test>
    		<edit name="family" mode="assign" binding="same"><string>Arial</string>
    	</edit>
  	</match>  
  	  
  		<!-- These full hinted fonts should use slight hinting below 12 px -->
	<match target="font">
		<test name="family">
			<string>Arial Black</string>
		</test>
		<test name="pixelsize" compare="less">
			<double>12</double>
		</test>
		<edit name="hintstyle" mode="assign">
			<const>hintslight</const>
		</edit>
		<edit name="autohint" mode="assign">
			<bool>true</bool>
		</edit>
	</match>
	
		<!-- Inconsolata-Bold.otf looks like crap -->
	<selectfont>
		<rejectfont>
			<pattern>
				<patelt name="family" >
					<string>Inconsolata</string>
				</patelt>
				<patelt name="weight" >
					<const>bold</const>
				</patelt>
			</pattern>
		</rejectfont>
	</selectfont>

</fontconfig>