How We Fill in a Customer’s Design — Bringing a Verbal Identity Onto the Screen

What role do designers play at AppBuildChat?

Designers at AppBuildChat are not simply people who “make screens look pretty.”

They interpret the service’s personality, target users, brand emotion, tone, and manner from the customer’s verbal descriptions, and convert them into a visual language.

Once AI automatically generates the overall app structure and basic UI from the PRD, designers begin the process of layering the customer’s brand on top of it.

Even subtle expressions like “I want it to feel calm” or “I’d like it to feel a bit more professional” become meaningful cues for designers.

How should customers describe their desired design? Do they need professional terminology?

Not at all.

Because AppBuildChat is based on the Incomplete Vibe Coding philosophy, customers only need to express a few emotional cues.

For example:
- “A slightly warmer atmosphere”
- “An app that feels trustworthy”
- “Something young and bright”

Even these simple phrases are enough for designers to determine colors, spacing, proportions, and icon tone.

Technical or design terminology is unnecessary—what matters is the emotional direction the customer wants.

Do designers use the AI-generated UI as-is?

No.

AI can generate a basic UI structure quickly, but the output is merely a starting point for designers to interpret and refine.

Designers reorganize AI-generated screens from a real service perspective, applying brand character, category standards, and user behavior patterns.

During this process, essential usability elements—button spacing, information hierarchy, visual flow, use of whitespace—are polished carefully.

What design standards do designers apply based on app category?

Designers believe that when an app’s category changes, its visual language must also change.

For example,
- Finance apps require trustworthy colors and stable layouts.
- Shopping apps need eye-catching elements and dynamic compositions.
- Education apps benefit from step-by-step clarity.
- Fitness apps require strong contrast to drive immediate action.

Designers set visual principles based on the category’s purpose and the user’s emotional state, then apply them to the screens. This type of aesthetic judgment is something AI cannot replace—making it a core aspect of the Human Layer.

How is the customer’s brand identity reflected on the screen?

Brand identity is not defined only by a logo or color palette.

It includes the emotion the brand wants to convey, the service’s attitude, and the behavior expected from users.

Designers interpret brand tone by combining the customer’s words, keywords, product goals, and target audience, then translate this into color, typography, spacing, visual style, and icon expression.

After this process, even if two apps have the same features, one will distinctly feel like that brand’s app.

What does the designer’s work mean within the Human + AI system?

In the Human + AI system, AI creates the structure quickly, and designers turn that structure into a true product through identity and emotion.

Once designers layer emotion, brand, and category-specific standards onto AI’s foundation, the app transforms from an automatically generated output into a polished service.

This combination is the most effective way to achieve both speed and high quality—and the idea that “well begun is half done” applies just as much in the design stage.

Is the final design tested with real users?

Designers do more than create visuals—they also participate in testing the actual app.

They check whether screen transitions feel natural, whether any moments are confusing for users, and whether touch areas and spacing match real hand movements.

Because this is an experience test, not just a technical test, it is extremely important.
Through this process, the design evolves from simple aesthetics into genuine user experience.