diff --git a/lib/karafka/web/ui/public/javascripts/application.js b/lib/karafka/web/ui/public/javascripts/application.js
index 374d0fb5..b36dc913 100644
--- a/lib/karafka/web/ui/public/javascripts/application.js
+++ b/lib/karafka/web/ui/public/javascripts/application.js
@@ -1,3 +1,4 @@
+// Nicer display of time distance from a given event
 function updateTimeAgo() {
   var selection = document.querySelectorAll('time');
 
@@ -7,11 +8,15 @@ function updateTimeAgo() {
   }
 }
 
+// To prevent from flickering, the UI is initially hidden and visible when all the JS components
+// are fully initialized
 function displayUi() {
   var content = document.getElementById('content');
   content.style.display = 'inherit';
 }
 
+// When using explorer, we can select the desired partition. This code redirects without having
+// to press a button after a select
 function redirectToPartition() {
   var selector = document.getElementById('current-partition');
 
@@ -31,8 +36,8 @@ function addListeners() {
   updateTimeAgo();
   redirectToPartition();
   manageTabs();
-  displayUi();
   manageCharts();
+  displayUi();
 }
 
 var ready = (callback) => {
diff --git a/lib/karafka/web/ui/public/javascripts/charts.js b/lib/karafka/web/ui/public/javascripts/charts.js
index c8b4e29b..3f72b3d0 100644
--- a/lib/karafka/web/ui/public/javascripts/charts.js
+++ b/lib/karafka/web/ui/public/javascripts/charts.js
@@ -167,7 +167,8 @@ function refreshCharts(new_doc) {
         {
           data: datasets[key],
           label: key,
-          hidden: disabled_sets.includes(i)
+          hidden: disabled_sets.includes(i),
+          borderWidth: 2.5
         }
       )
     })
@@ -314,7 +315,8 @@ function renderCharts() {
         {
           data: datasets[key],
           label: key,
-          hidden: disabled_sets.includes(i)
+          hidden: disabled_sets.includes(i),
+          borderWidth: 2.5
         }
       )
     })
diff --git a/lib/karafka/web/ui/public/javascripts/live_poll.js b/lib/karafka/web/ui/public/javascripts/live_poll.js
index 7580f3d7..207fa7b4 100644
--- a/lib/karafka/web/ui/public/javascripts/live_poll.js
+++ b/lib/karafka/web/ui/public/javascripts/live_poll.js
@@ -1,7 +1,9 @@
-// inspired by https://github.com/mperham/sidekiq JS code
+// Inspired by https://github.com/mperham/sidekiq JS code
 //
 // Live polls changes but won't refresh DOM if the payload is the same and will stop polling if
 // user is selecting anything.
+//
+// In case of pages with charts, DOM won't be refreshed but charts will be updated
 
 var livePollTimer = null;
 var oldDOM = null;
diff --git a/lib/karafka/web/ui/public/javascripts/tabs.js b/lib/karafka/web/ui/public/javascripts/tabs.js
index 3e5085ea..34552223 100644
--- a/lib/karafka/web/ui/public/javascripts/tabs.js
+++ b/lib/karafka/web/ui/public/javascripts/tabs.js
@@ -1,3 +1,8 @@
+// Bootstrap tabs management with local storage for selected tab + restore
+//
+// Because we have pages where tabs are under the same view and some of them include charts, we
+// keep track of them and in case user is back, we restore the last tab that was active
+
 function readAllActiveTabs() {
   let raw_active_tabs = localStorage.karafkaActiveTabs