diff --git a/services/web/app/views/project/editor/dropbox.jade b/services/web/app/views/project/editor/dropbox.jade
index 7cc425ccef..5aa2e1b44b 100644
--- a/services/web/app/views/project/editor/dropbox.jade
+++ b/services/web/app/views/project/editor/dropbox.jade
@@ -25,8 +25,8 @@ script(type="text/ng-template", id="dropboxModalTemplate")
 					strong Dropbox/sharelatex/{{ project.name }}
 			div.text-center(ng-hide="dbState.hasDropboxFeature")
 				p #{translate("need_to_upgrade_for_dropbox")}
-				p
-					a.btn.btn-info(ng-click="startFreeTrial('dropbox')") #{translate("start_free_trial")}
+				p(ng-controller="FreeTrialModalController")
+					a.btn(ng-click="startFreeTrial('dropbox')", ng-class="buttonClass") #{translate("start_free_trial")}
 				p.small(ng-show="startedFreeTrial")
 					| #{translate("refresh_page_after_starting_free_trial")}
 
diff --git a/services/web/app/views/project/editor/pdf.jade b/services/web/app/views/project/editor/pdf.jade
index ef67ee81b4..6d59fd0584 100644
--- a/services/web/app/views/project/editor/pdf.jade
+++ b/services/web/app/views/project/editor/pdf.jade
@@ -99,7 +99,7 @@ div.full-size.pdf(ng-controller="PdfController")
 					p
 						a.btn.btn-info(
 							href
-							ng-click="startFreeTrial('compile-timeout')"
+							ng-click="hello('compile-timeout')"
 						) #{translate("start_free_trial")}
 
 
diff --git a/services/web/app/views/project/editor/share.jade b/services/web/app/views/project/editor/share.jade
index 7f48a3ebdd..83e4c52f38 100644
--- a/services/web/app/views/project/editor/share.jade
+++ b/services/web/app/views/project/editor/share.jade
@@ -68,8 +68,8 @@ script(type='text/ng-template', id='shareProjectModalTemplate')
 							) #{translate("share")}
 				div.text-center(ng-hide="canAddCollaborators")
 					p #{translate("need_to_upgrade_for_more_collabs")}.
-					p
-						a.btn.btn-info(href, ng-click="startFreeTrial('projectMembers')") #{translate("start_free_trial")}
+					p(ng-controller="FreeTrialModalController")
+						a.btn(href, ng-click="startFreeTrial('projectMembers')", ng-class="buttonClass") #{translate("start_free_trial")}
 					p.small(ng-show="startedFreeTrial")
 						| #{translate("refresh_page_after_starting_free_trial")}.
 
diff --git a/services/web/app/views/project/editor/track-changes.jade b/services/web/app/views/project/editor/track-changes.jade
index aad08a0576..10f4070dee 100644
--- a/services/web/app/views/project/editor/track-changes.jade
+++ b/services/web/app/views/project/editor/track-changes.jade
@@ -2,9 +2,10 @@ div#trackChanges(ng-show="ui.view == 'track-changes'")
 	.upgrade-prompt(ng-show="!project.features.versioning")
 		.message(ng-show="project.owner._id == user.id")
 			p #{translate("need_to_upgrade_for_history")}
-			p
-				a.btn.btn-info(
+			p(ng-controller="FreeTrialModalController")
+				a.btn(
 					href
+					ng-class="buttonClass"
 					ng-click="startFreeTrial('track-changes')"
 				) #{translate("start_free_trial")}
 			p.small(ng-show="startedFreeTrial") #{translate("refresh_page_after_starting_free_trial")}
diff --git a/services/web/app/views/subscriptions/new.jade b/services/web/app/views/subscriptions/new.jade
index 470fefb9a8..78ad380d59 100644
--- a/services/web/app/views/subscriptions/new.jade
+++ b/services/web/app/views/subscriptions/new.jade
@@ -86,7 +86,7 @@ block content
 		Recurly.buildSubscriptionForm(recurlySubscriptionFormConfig);
 
 		window.ab = [
-			{step:1, bucket:"eu-eu", testName:"multi_currency"},
-			{step:1, bucket:"eu-usd", testName:"multi_currency"}
+			{step:1, bucket:"red", testName:"button_color"},
+			{step:1, bucket:"blue", testName:"button_color"}
 		]
 
diff --git a/services/web/app/views/subscriptions/successful_subscription.jade b/services/web/app/views/subscriptions/successful_subscription.jade
index 8b66dec6c9..7047e7c8ac 100644
--- a/services/web/app/views/subscriptions/successful_subscription.jade
+++ b/services/web/app/views/subscriptions/successful_subscription.jade
@@ -37,4 +37,7 @@ block content
 		window.ab = [
 			{step:1, bucket:"student_control", testName:"editor_plan"},
 			{step:1, bucket:"collab_test", testName:"editor_plan"},
+
+			{step:2, bucket:"blue", testName:"button_color"},
+			{step:2, bucket:"red", testName:"button_color"}
 		]
\ No newline at end of file
diff --git a/services/web/app/views/view_templates/bonus_templates.jade b/services/web/app/views/view_templates/bonus_templates.jade
index e96f387137..a75c0ad284 100644
--- a/services/web/app/views/view_templates/bonus_templates.jade
+++ b/services/web/app/views/view_templates/bonus_templates.jade
@@ -28,7 +28,7 @@ script(type="text/ng-template", id="BonusLinkToUsModal")
 			div.text-center(ng-hide="dbState.hasDropboxFeature")
 				p You need to upgrade your account to link to dropbox.
 				p
-					a.btn.btn-info(ng-click="startFreeTrial('dropbox')") Start Free Trial
+					a.btn(ng-click="startFreeTrial('dropbox')", ng-class="buttonClass") Start Free Trial
 				p.small(ng-show="startedFreeTrial")
 					| Please refresh this page after starting your free trial.
 
diff --git a/services/web/public/coffee/ide.coffee b/services/web/public/coffee/ide.coffee
index 9639af07c9..e5abde12cf 100644
--- a/services/web/public/coffee/ide.coffee
+++ b/services/web/public/coffee/ide.coffee
@@ -27,6 +27,7 @@ define [
 	"directives/rightClick"
 	"filters/formatDate"
 	"main/event-tracking"
+	"main/account-upgrade"
 ], (
 	App
 	FileTreeManager
@@ -38,7 +39,8 @@ define [
 	PdfManager
 	BinaryFilesManager
 ) ->
-	App.controller "IdeController", ($scope, $timeout, ide, abTestManager) ->
+
+	App.controller "IdeController", ($scope, $timeout, ide) ->
 		# Don't freak out if we're already in an apply callback
 		$scope.$originalApply = $scope.$apply
 		$scope.$apply = (fn = () ->) ->
@@ -64,17 +66,6 @@ define [
 
 		$scope.chat = {}
 
-		$scope.startFreeTrial = (source) ->
-
-			testBuckets = [
-				{ bucketName:"student_control", planName:"student"}
-				{ bucketName:"collab_test", planName:"collaborator"}
-			]
-			editorPlanBucket = abTestManager.getABTestBucket "editor_plan", testBuckets
-			abTestManager.processTestWithStep("editor_plan", editorPlanBucket.bucketName, 0)
-			ga?('send', 'event', 'subscription-funnel', 'upgraded-free-trial', source)
-			window.open("/user/subscription/new?planCode=#{editorPlanBucket.planName}_free_trial_7_days&ssp=#{editorPlanBucket.planName == 'collaborator'}")
-			$scope.startedFreeTrial = true
 		
 		window._ide = ide
 
diff --git a/services/web/public/coffee/main/account-upgrade.coffee b/services/web/public/coffee/main/account-upgrade.coffee
new file mode 100644
index 0000000000..df3f6e9724
--- /dev/null
+++ b/services/web/public/coffee/main/account-upgrade.coffee
@@ -0,0 +1,27 @@
+define [
+	"base"
+], (App) ->
+	App.controller "FreeTrialModalController", ($scope, abTestManager)->
+
+		buttonColorBuckets = [
+			{ bucketName:"red", btnClass:"primary"}
+			{ bucketName:"blue", btnClass:"info"}
+		]
+
+		buttonColorBucket = abTestManager.getABTestBucket "button_color", buttonColorBuckets
+		abTestManager.processTestWithStep("button_color", buttonColorBucket.bucketName, 0)
+		$scope.buttonClass = "btn-#{buttonColorBucket.btnClass}"
+
+
+		$scope.startFreeTrial = (source) ->
+
+			testBuckets = [
+				{ bucketName:"student_control", planName:"student"}
+				{ bucketName:"collab_test", planName:"collaborator"}
+			]
+
+			editorPlanBucket = abTestManager.getABTestBucket "editor_plan", testBuckets
+			abTestManager.processTestWithStep("editor_plan", editorPlanBucket.bucketName, 0)
+			ga?('send', 'event', 'subscription-funnel', 'upgraded-free-trial', source)
+			window.open("/user/subscription/new?planCode=#{editorPlanBucket.planName}_free_trial_7_days&ssp=#{editorPlanBucket.planName == 'collaborator'}")
+			$scope.startedFreeTrial = true
\ No newline at end of file