diff --git a/.gitignore b/.gitignore
index ccd5e6b..c7cb5be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ inst/doc
 renv/
 renv.lock
 .Rprofile
+docs/
\ No newline at end of file
diff --git a/pkgdown/extra.css b/pkgdown/extra.css
new file mode 100644
index 0000000..eeac7ec
--- /dev/null
+++ b/pkgdown/extra.css
@@ -0,0 +1,85 @@
+/*
+Developed and maintained by Kevin Rue-Albrecht (@kevinrue)
+*/
+
+/*
+#0092ac   blue
+#00758a   darker blue (active menu)
+#c4d931   green (on blue)
+#87b13f   green (on white)
+*/
+
+.headroom {
+  background-color: #0092ac;
+}
+
+.navbar-default .navbar-nav>.active>a,
+.navbar-default .navbar-nav>.active>a:hover,
+.navbar-default .navbar-nav>.active>a:focus {
+    color: #c4d931;
+    background-color: #00758a;
+}
+
+.navbar-default .navbar-nav>.open>a,
+.navbar-default .navbar-nav>.open>a:hover,
+.navbar-default .navbar-nav>.open>a:focus {
+    color: #c4d931;
+    background-color: #00758a;
+}
+
+.dropdown-menu>.active>a,
+.dropdown-menu>.active>a:hover,
+.dropdown-menu>.active>a:focus {
+    color: #c4d931;
+    background-color: #00758a;
+}
+
+.navbar-default .navbar-nav>li>a:hover,
+.navbar-default .navbar-nav>li>a:focus {
+    color: #c4d931;
+}
+
+.dropdown-menu>li>a:hover {
+    color: #87b13f;
+    background-color: #ffffff;
+}
+
+.navbar-default .navbar-nav>li>a {
+    color: #ffffff;
+}
+
+h1 {
+  color: #87b13f;
+}
+
+h2 {
+  color: #87b13f;
+}
+
+h3 {
+  color: #1a81c2;
+  font-weight: bold;
+}
+
+.btn-copy-ex {
+  color: #ffffff;
+  background-color: #0092ac;
+  border-color: #0092ac;
+}
+
+.btn-copy-ex:hover {
+  color: #ffffff;
+  background-color: #00758a;
+  border-color: #00758a;
+}
+
+.btn-copy-ex:active:focus {
+  color: #c4d931;
+  background-color: #00758a;
+  border-color: #0092ac;
+}
+
+p>.fa,
+p>.fas {
+  color: #0092ac;
+}
diff --git a/vignettes/workshop_isee_extension.Rmd b/vignettes/workshop_isee_extension.Rmd
index bd905fe..71061af 100644
--- a/vignettes/workshop_isee_extension.Rmd
+++ b/vignettes/workshop_isee_extension.Rmd
@@ -1,9 +1,9 @@
 ---
-title: "Writing an iSEE extension"
+title: "Writing iSEE extensions"
 author: Kevin Rue-Albrecht^[kevinrue67@gmail.com],Federico Marini^[marinif@uni-mainz.de], Charlotte Soneson^[charlottesoneson@gmail.com]
 output: rmarkdown::html_vignette
 vignette: >
-  %\VignetteIndexEntry{Writing an iSEE extension}
+  %\VignetteIndexEntry{Writing iSEE extensions}
   %\VignetteEngine{knitr::rmarkdown}
   %\VignetteEncoding{UTF-8}
 ---
@@ -16,7 +16,7 @@ knitr::opts_chunk$set(
 )
 ```
 
-# Writing an iSEE extension
+# Writing iSEE extensions
 
 Authors:
     Kevin Rue-Albrecht^[University of Oxford],
@@ -36,20 +36,33 @@ packages.
 
 ### Pre-requisites
 
+Workshop prerequisites:
+
 * Familiarity with the SummarizedExperiment class.
 * Familiarity with the shiny package
 
-List any workshop prerequisites, for example:
-
-* Basic knowledge of R syntax
-* Familiarity with the GenomicRanges class
-* Familiarity with xyz vignette (provide link)
-
-List relevant background reading for the workshop, including any
-theoretical background you expect students to have.
-
-* List any textbooks, papers, or other reading that students should be
-  familiar with. Include direct links where possible.
+Relevant background reading:
+
+* EuroBioC2023:
+  (
+  [workshop](https://isee.github.io/iSEEDemoEuroBioC2023/articles/iSEEdemo.html)
+  )
+* EuroBioC2020: 
+  (
+  [workshop](https://isee.github.io/iSEEWorkshopEuroBioc2020/),
+  [slides](https://isee.github.io/iSEEWorkshopEuroBioc2020Slides/)
+  )
+* BioC2020: 
+  (
+  [workshop](https://isee.github.io/iSEEWorkshop2020/),
+  [slides](https://isee.github.io/iSEEWorkshop2020Slides/)
+  )
+* BioC2019
+  (
+  [workshop](https://isee.github.io/iSEEWorkshop2019/),
+  [slides](https://isee.github.io/iSEEWorkshop2019Slides/)
+  )
+* Rue-Albrecht K, Marini F, Soneson C and Lun ATL. iSEE: Interactive SummarizedExperiment Explorer [version 1; peer review: 3 approved]. F1000Research 2018, 7:741 (https://doi.org/10.12688/f1000research.14966.1)
 
 ### Participation