diff --git a/CHANGES.md b/CHANGES.md
index 74b45bd1638..166dae6400e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,6 +6,7 @@ Changes
 
 ### Unreleased
 
+* 2024-07-12 - Upgrade: Adopt new activity purpose "Interactive content" when coloring activity icons, resolves #611.
 * 2024-07-07 - Upgrade: Adopt changes for coloring the activity icons, moving from background-colors to CSS filters, resolves #631.
 * 2024-07-04 - Upgrade: Fix Behat tests which broke due to the introduction of section pages in Moodle core.
 * 2024-07-04 - Upgrade: Adopt changes in boostnavbar.php from Boost core.
diff --git a/lang/en/theme_boost_union.php b/lang/en/theme_boost_union.php
index 03020145d28..244f455999d 100644
--- a/lang/en/theme_boost_union.php
+++ b/lang/en/theme_boost_union.php
@@ -197,6 +197,9 @@
 // ... ... Setting: Activity icon color for 'Content'.
 $string['activityiconcolorcontentsetting'] = 'Activity icon color for "Content"';
 $string['activityiconcolorcontentsetting_desc'] = 'The activity icon color for "Content"';
+// ... ... Setting: Activity icon color for 'Interactive content'.
+$string['activityiconcolorinteractivecontentsetting'] = 'Activity icon color for "Interactive content"';
+$string['activityiconcolorinteractivecontentsetting_desc'] = 'The activity icon color for "Interactive content"';
 // ... ... Setting: Activity icon color for 'Interface'.
 $string['activityiconcolorinterfacesetting'] = 'Activity icon color for "Interface"';
 $string['activityiconcolorinterfacesetting_desc'] = 'The activity icon color for "Interface"';
@@ -216,6 +219,7 @@
 $string['activitypurposecollaboration'] = 'Collaboration';
 $string['activitypurposecommunication'] = 'Communication';
 $string['activitypurposecontent'] = 'Content';
+$string['activitypurposeinteractivecontent'] = 'Interactive content';
 $string['activitypurposeinterface'] = 'Interface';
 $string['activitypurposeother'] = 'Other';
 // ... Section: Activity icons.
diff --git a/lib.php b/lib.php
index 85dbfeb8dfc..8b7404dfe3e 100644
--- a/lib.php
+++ b/lib.php
@@ -229,6 +229,7 @@ function theme_boost_union_get_pre_scss($theme) {
             MOD_PURPOSE_COLLABORATION,
             MOD_PURPOSE_COMMUNICATION,
             MOD_PURPOSE_CONTENT,
+            MOD_PURPOSE_INTERACTIVECONTENT,
             MOD_PURPOSE_INTERFACE];
     // Iterate over all purposes.
     foreach ($purposes as $purpose) {
diff --git a/settings.php b/settings.php
index 8c795acad74..914d8213b83 100644
--- a/settings.php
+++ b/settings.php
@@ -554,6 +554,7 @@
                 MOD_PURPOSE_COLLABORATION,
                 MOD_PURPOSE_COMMUNICATION,
                 MOD_PURPOSE_CONTENT,
+                MOD_PURPOSE_INTERACTIVECONTENT,
                 MOD_PURPOSE_INTERFACE];
         // Iterate over all purposes.
         foreach ($purposes as $purpose) {
@@ -597,6 +598,7 @@
                 MOD_PURPOSE_COLLABORATION => get_string('activitypurposecollaboration', 'theme_boost_union'),
                 MOD_PURPOSE_COMMUNICATION => get_string('activitypurposecommunication', 'theme_boost_union'),
                 MOD_PURPOSE_CONTENT => get_string('activitypurposecontent', 'theme_boost_union'),
+                MOD_PURPOSE_INTERACTIVECONTENT => get_string('activitypurposeinteractivecontent', 'theme_boost_union'),
                 MOD_PURPOSE_INTERFACE => get_string('activitypurposeinterface', 'theme_boost_union'),
                 MOD_PURPOSE_OTHER => get_string('activitypurposeother', 'theme_boost_union'),
         ];
diff --git a/tests/behat/theme_boost_union_looksettings_activitybranding.feature b/tests/behat/theme_boost_union_looksettings_activitybranding.feature
index 58666157f52..2c82eec8691 100644
--- a/tests/behat/theme_boost_union_looksettings_activitybranding.feature
+++ b/tests/behat/theme_boost_union_looksettings_activitybranding.feature
@@ -28,11 +28,12 @@ Feature: Configuring the theme_boost_union plugin for the "Activity branding" ta
     # Unfortunately, we can only test 4 out of 6 purpose types as Moodle does does not ship with any activity with the
     # administration and interface types. But this should be an acceptable test coverage anyway.
     Examples:
-      | purposename   | modname | colorhex | originalfilter                                                                                      |
-      | assessment    | assign  | #FF0000  | invert(0.36) sepia(0.98) saturate(69.69) hue-rotate(315deg) brightness(0.9) contrast(1.19)  |
-      | collaboration | data    | #00FF00  | invert(0.25) sepia(0.54) saturate(62.26) hue-rotate(245deg) brightness(1) contrast(1.02)    |
-      | communication | choice  | #0000FF  | invert(0.48) sepia(0.74) saturate(48.87) hue-rotate(11deg) brightness(1.02) contrast(1.01)  |
-      | content       | book    | #FFFF00  | invert(0.49) sepia(0.52) saturate(46.75) hue-rotate(156deg) brightness(0.89) contrast(1.02) |
+      | purposename        | modname | colorhex | originalfilter                                                                              |
+      | assessment         | assign  | #FF0000  | invert(0.36) sepia(0.98) saturate(69.69) hue-rotate(315deg) brightness(0.9) contrast(1.19)  |
+      | collaboration      | data    | #00FF00  | invert(0.25) sepia(0.54) saturate(62.26) hue-rotate(245deg) brightness(1) contrast(1.02)    |
+      | communication      | choice  | #0000FF  | invert(0.48) sepia(0.74) saturate(48.87) hue-rotate(11deg) brightness(1.02) contrast(1.01)  |
+      | content            | book    | #FFFF00  | invert(0.49) sepia(0.52) saturate(46.75) hue-rotate(156deg) brightness(0.89) contrast(1.02) |
+      | interactivecontent | lesson  | #00FFFF  | invert(0.25) sepia(0.63) saturate(11.52) hue-rotate(344deg) brightness(0.94) contrast(0.91) |
 
   @javascript
   Scenario Outline: Setting: Activity icon purposes - Setting the purpose