1 file changed, 8 insertions, 0 deletions
diff --git a/README.txt b/README.txt
index 29dabda..bcddbf4 100644
--- a/README.txt
+++ b/README.txt
@@ -175,6 +175,14 @@ A theme that only wants a colour change is a few lines.
       background: var(--surface);
     }
 
+Keep a theme in a file of its own, since make install overwrites cgit.css. The
+first css line replaces the default rather than adding to it, as a js line does
+cgit.js, so list cgit.css first. The server configs in custom/servers/ serve
+only the shipped files off disk, so add the theme to them too.
+
+    css=/cgit.css
+    css=/theme.css
+
 tests/t0005-markup.sh checks that every hook named here is still emitted.