[css-fonts-4] Users must be able to modify the set of installed fonts available for rendering web pages w3c#5421

Author: svgeesus

css-fonts-4/Overview.bs

@@ -3891,21 +3891,37 @@ The set of  <a href="#installed-fonts">installed fonts</a> available
 to the Font Matching Algorithm 
 is explicitly undefined.
 
+The default set of installed fonts will vary
+by UA, platform, and locale;
+it is important that users be able to customise
+which installed fonts are available for rendering web pages
+and to which generic font families, if any,
+these fonts are mapped.
+
 UAs may choose to expose all installed fonts to the web, 
 regardless of how that font was installed; 
 doing so is likely to have good internationalization properties 
 for users whose primary language is not supported 
 by fonts shipping with their operating system. 
+
 UAs may alternatively choose 
-to not expose user-installed fonts to aid privacy on the web; 
+to not initially expose any user-installed fonts to aid privacy on the web; 
 for the set of installed fonts a user has installed 
 is often used as a tracking vector to track users across the web. 
+Users would then add to add to or remove fonts from that set,
+according to their needs.
+
 UAs may choose a hybrid approach, where some user-installed fonts 
-are exposed for internationalization, 
+are initially exposed for internationalization, 
 but others aren't. 
+Again, users would be able to customise this starting set.
+
 UAs are expected to make informed decisions 
-on which fonts they expose to the web, 
+on which fonts they expose to the web by default, 
 so as to balance between internationalization and privacy.
+UAs are expected to also provide a convenient means
+for users to add and subtract fonts 
+to meet their particular needs.
 
 <wpt>
 	fallback-remote-to-data-url.html