Fix private filter

Resolves #1992

Author: Gerrit0

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Unreleased
 
+### Bug Fixes
+
+-   The private member visibility option will now be respected in generated sites, #1992.
+
 ## v0.23.6 (2022-07-08)
 
 ### Features

src/lib/output/themes/default/DefaultTheme.tsx

@@ -276,6 +276,10 @@ export class DefaultTheme extends Theme {
                 if (reflection.flags.isProtected) {
                     classes.push("tsd-is-protected");
                 }
+            } else if (key === "private") {
+                if (reflection.flags.isPrivate) {
+                    classes.push("tsd-is-private");
+                }
             } else if (key === "external") {
                 if (reflection.flags.isExternal) {
                     classes.push("tsd-is-external");