diff --git a/styles/img/bg_header.webp b/styles/img/bg_header.webp
index 28564e8d..12b09d06 100644
Binary files a/styles/img/bg_header.webp and b/styles/img/bg_header.webp differ
diff --git a/styles/img/bg_header_old.webp b/styles/img/bg_header_old.webp
new file mode 100644
index 00000000..28564e8d
Binary files /dev/null and b/styles/img/bg_header_old.webp differ
diff --git a/styles/img/bg_sid_dark.jpg b/styles/img/bg_sid_dark.jpg
index c58535a1..f942ae71 100644
Binary files a/styles/img/bg_sid_dark.jpg and b/styles/img/bg_sid_dark.jpg differ
diff --git a/styles/img/testGraph.jpg b/styles/img/testGraph.jpg
deleted file mode 100644
index 1d444940..00000000
Binary files a/styles/img/testGraph.jpg and /dev/null differ
diff --git a/styles/img/testsid.jpg b/styles/img/testsid.jpg
deleted file mode 100644
index c95b8051..00000000
Binary files a/styles/img/testsid.jpg and /dev/null differ
diff --git a/styles/simple.css b/styles/simple.css
index d9c3cec4..6875c7f2 100644
--- a/styles/simple.css
+++ b/styles/simple.css
@@ -597,7 +597,7 @@ section.sheet-body:after, section.sheet-body div:after {
 /* Sidebar CSS */
 #sidebar {
   font-size: 1rem;
-  background: rgb(245,245,240) url("img/bg_sid_dark.jpg") no-repeat right bottom;
+  background: rgb(105,85,65) url("img/bg_sid_dark.jpg") no-repeat right bottom;
   background-position: 100%;
   color: rgba(220,220,220,0.75);
 }