When there is no one to review your design
Review is where a UI design comes together, but small teams and solo designers often have no one to hand the work to — or the few reviewers they have keep offering the same perspective. Getting that feedback loop moving is the real bottleneck.
Enter Gemini. As an AI assistant, you can send Figma designs as screenshots and receive real-time, multifaceted feedback instantly. This article walks you through practical methods to leverage Gemini for design reviews, from the fundamentals to advanced use cases.
Basic Steps: Sending Your Figma Design to Gemini
1. Capture Your Design from Figma
Start by framing the design element you want to review on the Figma canvas, then export it as a screenshot.
Detailed process:
- Select the target frame
- Open the right panel > "Export"
- Export as PNG (high resolution recommended: 2x or higher)
- Enable "Include background" if needed
The key is exporting at a resolution that keeps everything readable—you want to see even small UI details like icon sizes. Aim for at least 1200×900px.
High-quality export settings:
- Set "Scale" to "2x" in the Export section
- Standardize background color to "White" (improves Gemini's image recognition)
- Add padding/margins as needed
2. Upload to Gemini
Open Gemini Chat (web version), start a new conversation, and paste your screenshot.
"Please review this UI design. Focus on these aspects:
- Layout and whitespace
- Typography hierarchy
- Color contrast
- Accessibility improvements"
Clear prompts yield better feedback. You can even upload multiple related designs to review them together.
Multifaceted Design Review with Gemini
Layout and Whitespace Analysis
Gemini can evaluate UI placement and spacing balance visually.
Key review points:
- Are spacing values consistent? (8px, 16px, 24px, etc.)
- Does it follow a grid system? (8px is standard)
- Is the visual flow natural? (Z-pattern or F-pattern reading)
- Is the density appropriate? (Not overcrowded?)
- Are screen edges handled safely? (Safe area maintained?)
Sample question: "Describe the visual flow in this design. In order of priority, how does the user's eye move across the screen?"
Gemini's image analysis will identify:
- Whether CTAs stand out enough
- How well information is grouped
- How effectively the space is used
Golden ratio for whitespace:
- Outer margins: 16–24px
- Element gutters: 8–16px
- Line height: 1.4–1.6x
Typography Hierarchy
Gemini evaluates whether headings, body text, and supporting copy are properly differentiated.
Sample question: "Classify all text in this design by size. Are the size relationships easy to read? Suggest improvements."
Gemini's response example:
- Primary heading: 32px / 600 weight (draws attention)
- Secondary heading: 20px / 600 weight (section breaks)
- Body text: 16px / 400 weight (readability)
- Supporting info: 14px / 400 weight (subtle but needed)
Suggested improvements: "The gap between heading and body is too small. Expand the primary heading to 40px to strengthen visual hierarchy."
Recommended typography scale:
- Base size: 16px
- Scale ratio: 1.125x (whole tone) or 1.25x (major third)
- Suggested sizes: 12px → 14px → 16px → 18px → 20px → 24px → 28px → 32px → 40px
Color Contrast and WCAG Standards
Evaluate color contrast from an accessibility perspective—this is essential.
WCAG compliance details:
- WCAG AA (standard): 4.5:1 contrast ratio
- WCAG AAA (strict): 7:1 contrast ratio
- Large text: 3:1 is acceptable (32pt+)
Effective checks:
- Text-to-background contrast meets WCAG AA (4.5:1+)
- Ask Gemini: "Does the text-to-background color combination have sufficient contrast?"
- Button and link colors are distinguishable
- Don't rely on color alone (e.g., red = required, green = optional)
- Information isn't conveyed by color alone
- Use icons or text labels alongside color
Specific request: "Check this design against WCAG 2.1 AA standards. If any areas fall short, propose specific color codes."
Gemini's response example: "Your text color (#666666) and background (#F5F5F5) have a 4.3:1 ratio, below WCAG AA. Changing text to #333333 achieves 6.2:1, meeting the standard."
Practical Prompt Examples
Landing Page Review
"Please review this landing page design across these dimensions:
1. First-fold impact (does it grab attention?)
2. CTA button visibility (is it prominent?)
3. Scroll incentive (does it encourage scrolling?)
4. Mobile-first layout (readable on mobile?)
5. Industry alignment (competitive with similar sites?)"
Expected outputs:
- Specific problem areas ("Section A spacing is too tight")
- Impact metrics ("This CTA change may improve click-through rate")
- Alternatives ("Consider adding a floating menu")
App Screen Accessibility Audit
"Evaluate this screen from a screen reader user's perspective. Identify issues and propose fixes.
Specifically check:
1. Alternative text (alt text for images?)
2. Focus order (logical tab flow?)
3. Button labels (clear button purpose?)
4. Color dependence (understandable to colorblind users?)"
Gemini's screen-reader perspective:
- Do images have alt text?
- Do icon buttons have tooltips or labels?
- Are link texts meaningful, not "Click here"?
Design System Consistency Check
Send multiple screens and ask:
"Check these screens for consistency in color, text styles, spacing, and shadows.
List any design system violations with examples.
Review items:
- Do identical button types match across screens?
- Are text colors consistent with rules?
- Is spacing (padding) standardized?
- Are shadow effects applied consistently?"
Figma Dev Mode Integration
Figma's Dev Mode automatically generates measurements (sizes, spacing, fonts).
Using Dev Mode:
- Select "Dev" tab at the top of Figma
- Click components in the left panel
- View measurement info in the right panel
Share this data with Gemini for deeper analysis: "Is this design following the box model correctly? What's the component architecture strategy?"
Export Dev Mode output to Gemini:
Component: PrimaryButton
Size: 48px (H) × 200px (W)
Padding: 12px (T/B) × 16px (L/R)
Font: Inter, 14px, 600 weight
Background: #0066FF
Text: #FFFFFF
Border radius: 4px
Gemini request: "Review this button specification for implementation efficiency. Are there unnecessary values? Is it designed for multiple size variants?"
Building Design Systems with Gemini
Use Gemini to efficiently establish your design system foundation.
Color Palette Optimization
Submit multiple proposals and ask:
"Propose 3 color schemes for a SaaS app (calm, professional).
For each scheme, define:
1. Primary color (CTAs)
2. Secondary color (supporting info)
3. Neutral color (backgrounds, text)
4. Signal colors (error, warning, success)
Explain the reasoning for each palette."
Gemini's response example:
- Scheme 1: Professional — Deep Blue #003D82 × Gray #6B7280
- Scheme 2: Modern — Indigo #4F46E5 × Slate #64748B
- Scheme 3: Minimal — Slate #0F172A × Amber #F59E0B (accent)
Typography Scale Optimization
"Design a typography scale for a product.
Requirements:
- Base size: 16px
- Range: 12px to 48px
- Devices: Mobile to large displays
- Language: Mixed Japanese and English
Explain the logic and use cases for each size."
Gemini's design example:
12px → Captions, supporting info
14px → Small labels, subtext
16px → Body text, standard
18px → Secondary heading
20px → Heading (small)
24px → Heading (medium)
32px → Heading (large)
48px → Page title
Spacing System Validation
"Validate a 4px-based spacing system:
- Implementation efficiency: Easy for developers?
- Flexibility: Handles varied layouts?
- Visual harmony: Better as 8px units?
Propose improvements."
Gemini's analysis: "4px is too granular—you'll end up mixing values. 8px units (4, 8, 12, 16, 24, 32...) offer better balance. Consider 4px only for fine-tuning."
Design Quality Evaluation Framework
Ask Gemini to rate designs across six dimensions:
"Rate this design 1–10 on these dimensions. Provide an overall score.
1. Visual design (beauty, consistency)
2. Usability (ease, intuitiveness)
3. Accessibility (color-blind, screen readers)
4. Performance (image size, rendering)
5. Brand expression (identity reflected?)
6. Implementation feasibility (developer effort?)
For each, list 2 strengths and 2 improvement areas."
Summary
Using Gemini for design reviews offers clear benefits:
Main advantages:
- Speed — Get multiple feedback types in seconds
- Objectivity — Standards-based advice, no personal bias
- Learning — Absorb professional design thinking
- 24/7 availability — Review anytime
Implementation tips:
- Start small (single screens), then scale to full projects
- Review the same design multiple times for iterative learning
- Remember: Gemini's suggestions aren't infallible—make the final call yourself
Collaborate with Gemini to evolve your designs toward higher quality.