diff --git a/notebooks/_static/images/aai-institute-cover.png b/notebooks/_static/images/aai-institute-cover.png
index 250520d..c56ebb5 100644
--- a/notebooks/_static/images/aai-institute-cover.png
+++ b/notebooks/_static/images/aai-institute-cover.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:039dd4e069b5f935e51653f14d695884fb3410e70cf1e29526d54f694d3edb5b
-size 1921926
+oid sha256:0c3cc20e9651353be65b515b361337aa3b675374ae7a45473fbcc6f680e2b18d
+size 1692322
diff --git a/notebooks/_static/images/aai-institute-cover.svg b/notebooks/_static/images/aai-institute-cover.svg
deleted file mode 100644
index 9051065..0000000
--- a/notebooks/_static/images/aai-institute-cover.svg
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:cd3be9f4d4d8742ebc44635b54f768d0670c5201b3569cdd10ed2a0cfb69f295
-size 364518
diff --git a/notebooks/rise.css b/notebooks/rise.css
index 49508e4..1dc8c3c 100644
--- a/notebooks/rise.css
+++ b/notebooks/rise.css
@@ -22,7 +22,7 @@ body {
 }
 
 .navbar-default .navbar-nav > li > a {
-    color: #00747b !important;
+    color: #18a5a7 !important;
 }
 
 .filename {
@@ -36,7 +36,7 @@ body {
 }
 
 h1, h2 {
-    color: #00747b !important;
+    color: #18a5a7 !important;
 }
 
 h3, h4, h5, h6 {
@@ -114,14 +114,14 @@ div.plan-container {
 
 #toc, #toc-wrapper, .toc-item-num, #toc a, .toc {
     margin: auto !important;
-    color: #00747b !important;
+    color: #18a5a7 !important;
 }
 
 #toc-wrapper {
     top: auto !important;
     bottom: auto !important;
     margin-top: 2rem !important;
-    color: #00747b !important;
+    color: #18a5a7 !important;
 }
 
 
@@ -148,4 +148,4 @@ div.plan-container {
   position: relative;
   top: -50%;
   margin-left: 5%;
-}
\ No newline at end of file
+}