Session Replay iOS: Update Image privacy section (#30823)

* Session Replay iOS: Update Image privacy section

* Apply CR comment: add link ref at bottom

* Apply CR suggestion

Co-authored-by: Rosa Trieu <[email protected]>

* Update content/en/real_user_monitoring/session_replay/mobile/troubleshooting.md

Co-authored-by: Rosa Trieu <[email protected]>

---------

Co-authored-by: Rosa Trieu <[email protected]>

Author: mariedm

content/en/real_user_monitoring/session_replay/mobile/privacy_options.mdoc.md

@@ -237,19 +237,23 @@ SessionReplay.enable(config)
 <!-- end React Native -->
 
 #### Mask content images
-You can manage content masking while still showing system images.
+You can manage content masking while still allowing system or bundled images to be visible.
 
 <!-- iOS and React Native -->
 {% if or(equals($platform, "ios"), equals($platform, "react_native")) %}
-Select the `mask_non_bundled_only` setting, which replaces any image that is not part of the system with a "Content Image" placeholder.
+Use the `maskNonBundledOnly` setting to replace non-bundled images with a "Content Image" placeholder in the replay.
+
+- In UIKit, the SDK can determine whether an image is bundled and can mask it accordingly.
+- In SwiftUI, this determination isn't possible. Instead, the SDK uses a heuristic: if an image exceeds 100×100 points, it is assumed to be non-bundled and is masked.
+
 {% /if %}
 
 <!-- Android -->
 {% if equals($platform, "android") %}
 Select the `mask_large_only` setting, which replaces images with dimensions that exceed 100x100dp with a "Content Image" placeholder.
-{% /if %}
 
 **Note**: These dimensions refer to the drawable resource, not the view's size.
+{% /if %}
 
 <!-- Android -->
 {% if equals($platform, "android") %}

content/en/real_user_monitoring/session_replay/mobile/troubleshooting.md

@@ -31,8 +31,15 @@ Mobile Session Replay only supports native frameworks. Within these frameworks,
 - Advanced text styling
 
 ### Images do not render properly
-Depending on the SDK configuration of Mobile Session Replay, images may not always be displayed. 
-If privacy settings allow for it, Mobile Session Replay only captures Android images up to 100x100dp and iOS bundled images. All other images are replaced by a placeholder indicating the image size in the UI.
+Depending on the SDK configuration of Mobile Session Replay, images may not always be displayed.
+
+Image visibility depends on your SDK privacy configuration:
+- On iOS, if `maskNonBundledOnly` is enabled, only bundled images with UIKit and images up to 100x100 pts on SwiftUI are captured.
+- On Android, if `mask_large_only` is used, only images up to 100x100dp are captured.
+
+All other images are replaced by a "Content Image" placeholder in the UI.
+
+Learn more about [image privacy settings][1].
 
 Images follow a separate processing pipeline, which may introduce a small delay between uploading a replay and the image being available for rendering in the web player.
 In this case, wait a few minutes and then reload the replay. 
@@ -58,3 +65,4 @@ At any time during the lifetime of the host app, it's possible to change the tra
 ## Further reading
 
 {{< partial name="whats-next/whats-next.html" >}}
+[1]: /real_user_monitoring/session_replay/mobile/privacy_options/?platform=ios&tab=as-wrappers#image-masking