Personalization and Persona profiling

How to Apply

Add a “Your profile” page that lists the persona segments the user belongs to in plain language.
Show on that page which data points (e.g., age range, past purchases) are used to place the user in each segment.
Display a short “Why you see this” link next to personalized content that opens a compact explanation of the relevant persona profile.
Provide clear toggles on the profile page to opt out of specific persona segments or personalization types.

Dark Pattern

Personalization

It uses personal data to shape user experiences, influencing choices and hiding alternatives to guide user behavior.

Personalization subverts the user’s expectation that products or service features are offered to all users in similar ways, instead using personal data to shape elements of the user experience that manipulate the user’s goals while hiding other alternatives.

Contexts

settings

Harmed Goals

transparency
control

Sources

Bright Pattern

Persona profiling

Open →

Transparently shows users how they are categorized and profiled by the system.

The app or website transparently informs users of the categories or groups they are being placed into based on their data, allowing them to better understand how they are being profiled and how their experience may differ from other users.

Interaction Contexts

checkout
settings
social media

Sources

Pattern Levels

Diagram: High (strategy, diagnostic), Meso (angle of attack, still diagnostic), Low (means of execution, context specific). Integrated textual descriptions appear within each layer.

Source not found.

Approach: semantic vs flipping

Two different approaches to Bright Patterns:

Semantic Approach

This approach is used by Sandhaus. It defines concrete Bright Patterns for specific contexts — for example the Bright Pattern "Usage Limits", which describes an interface that restricts the usage time of a service to a healthy level.

Flipping Dark Patterns

The original way the term "Bright Pattern" was introduced: the direction of the manipulation is switched from harming the user to being user-friendly. For example, instead of highlighting the option that harms the user, the user-friendly option is highlighted.

Source:

How the Symbiosis Works

The symbiosis view connects dark patterns to bright alternatives

Dark Patterns match Bright Patterns

In the symbiosis view, each dark high/meso level pattern is paired with at least one matching bright pattern.

This view does not include low-level patterns, as these are implementation details. Refer to the related meso or high-level patterns for bright low-level alternatives.

Learn more about pattern levels in the pattern levels explainer.

Alternatives

Go into detail for each pair to see how a manipulative dark pattern can be replaced by an ethical bright pattern.

For that click on a pair in the symbiosis view to open its detail page. There you get a guide on how to apply the bright pattern and you can compare the bright pattern directly to the dark pattern.

Paul Bertram 2026

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