diff --git a/.gitignore b/.gitignore
index 58c64efd2f..4f1e345e35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,7 @@ project/project
 project/target
 public/trans
 public/compiled
+public/images/?N-bg.svg
 public/piece/alpha
 public/piece/cburnett
 public/piece/chess7
diff --git a/public/images/bN-bg.svg b/public/images/bN-bg.svg
deleted file mode 100644
index 9854ce5875..0000000000
--- a/public/images/bN-bg.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="33.529" height="33.504"><g fill="none" stroke="#fff" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" opacity=".1"><path d="M16.75 3.754c10.5 1 16.5 8 16 29h-23c0-9 10-6.5 8-21" fill="#000"/><path d="M18.75 11.754c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.042-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.003 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.994-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.992 2.5-3c1 0 1 3 1 3" fill="#000"/><path d="M4.25 19.254a.5.5 0 1 1-1 0 .5.5 0 1 1 1 0z" fill="#fff"/><path d="M9.683 9.504a.5 1.5 30 1 1-.866-.5.5 1.5 30 1 1 .866.5z" fill="#fff" stroke-width="1.49997"/></g></svg>
\ No newline at end of file
diff --git a/public/images/wN-bg.svg b/public/images/wN-bg.svg
deleted file mode 100644
index c1fd01f945..0000000000
--- a/public/images/wN-bg.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="33.529" height="33.504"><g fill="none" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" opacity=".1"><path d="M16.75 3.754c10.5 1 16.5 8 16 29h-23c0-9 10-6.5 8-21" fill="#fff"/><path d="M18.75 11.754c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.042-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.003 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.994-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.992 2.5-3c1 0 1 3 1 3" fill="#fff"/><path d="M4.25 19.254a.5.5 0 1 1-1 0 .5.5 0 1 1 1 0z" fill="#000"/><path d="M9.683 9.504a.5 1.5 30 1 1-.866-.5.5 1.5 30 1 1 .866.5z" fill="#000" stroke-width="1.49997"/></g></svg>
\ No newline at end of file