Guides Gemini published dec 9, 2025
This guide teaches you how to create a full brand kit PDF, multiple logo variations, and social media templates using Nano Banana Pro in Gemini. You’ll move through short phases for setup, brand discovery, logo generation, slide creation, social asset generation, and final export.
You will build a reusable brand system that can be shared with teammates, contractors, designers, interns, or anyone creating branded materials for your business.
The more time you spend going back and forth with Gemini during brand discovery, the better your end results will be.
Click "System instructions" and paste the following:
GENERATION PRINCIPLES:
When I request brand assets, structure your prompts using:
1. SUBJECT & PURPOSE: Clearly describe what we're creating and who it's for. For example: "A logo for freelance designers who value both aesthetics and professionalism."
2. VISUAL DESCRIPTION: Use natural language and full sentences. Describe composition, lighting, materials, textures, and spatial relationships as if briefing a human designer.
3. BRAND CONSISTENCY MARKERS: Reference the established color palette, typography style, visual mood, and design language we've agreed upon.
4. CONTEXT & RATIONALE: Explain why certain design choices support the brand strategy.
WORKFLOW APPROACH:
- Start with foundational assets, like logo and color palette, before moving to applications.
- Suggest variations that maintain brand integrity while adapting to different contexts.
- Proactively identify when an asset needs adjustment for its specific use case, such as social profile vs. banner.
QUALITY STANDARDS:
- Leverage Nano Banana Pro's strengths: precise typography, data visualization, consistent branding, and multi-image composition.
- Avoid keyword-style prompts like "logo, modern, clean, blue."
- Instead use: "A contemporary logo mark that combines geometric precision with organic flow, rendered in deep navy with coral accents, designed to appeal to creative professionals who appreciate sophisticated minimalism."Create a local folder on your computer for your brand kit, then add these subfolders:
I need to create a complete brand kit for my business. Let me give you the basics:
Business name: [YOUR BUSINESS NAME]
What we do: [ONE SENTENCE - e.g., "Productivity app that tracks time and generates invoices for freelancers"]
Target customer: [WHO + THEIR PAIN - e.g., "Freelance designers (25-40) who waste hours on admin work"]
Brand personality: [3 ADJECTIVES - e.g., "Professional, approachable, energetic"]
Interview me briefly to understand my brand, then we'll start generating assets. Keep it to 3-5 focused questions. Make sure you interview me about tagline(s) we can use for the brand.Based on our conversation, generate 4 distinct logo concepts for [YOUR BRAND NAME].
Show them in a clean 2x2 grid, labeled "Option 1" through "Option 4". Each should explore a different design direction while staying true to our brand positioning.
Use Nano Banana Pro to generate this as a professional presentation slide with the title "Logo Concepts" at the top.
Use these prompts to generate all the logo variations you will need. Download each result into your Logo Files folder using the filenames provided.
I love Option [NUMBER]. Create the primary, full-color version of this logo as a standalone, high-quality asset.
This is the main version we'll use most frequently. Show it on a clean white background with adequate spacing. Professional execution ready for all brand applications.
Save as: "Logo_Primary.png" in the Logo Files folder.Now create a simplified version of this logo optimized for small sizes like social media profile pictures and favicons.
This should be streamlined while remaining recognizable — could be icon-only or a condensed version. Must work well at 48x48 pixels and in circular crops.
Save as: "Logo_Secondary.png" in the Logo Files folder.Create a monochrome black version of our logo for situations where color printing isn't available — photocopies, faxes, newspaper ads, embossing.
Solid black only, no gradients or gray tones. Same design, just converted to pure black on white.
Save as: "Logo_Monochrome_Black.png" in the Logo Files folder.Create a monochrome reverse version — white logo on a dark background. This is for placing our logo on dark photography, dark websites, or dark branded materials.
Show it on a dark background so I can see the contrast clearly.
Save as: "Logo_Monochrome_White.png" in the Logo Files folder.Create an icon-only version, just the symbol/mark without the wordmark, for extremely small applications like app icons, favicons, and social media profiles.
Should work perfectly in a square format and remain recognizable as part of our brand.
Save as: "Logo_Icon.png" in the Logo Files folder.
Make sure you switch your system settings aspect ratio to 16:9 for slides.
Now create a professional "Logo System" slide showing all 5 variations we just created in a clean grid:
1. Primary (full color)
2. Secondary/Simplified
3. Monochrome Black
4. Monochrome White (on dark background)
5. Icon Only
Label each clearly and add minimum size specs: "Minimum width: 120px for primary, 48px for icon."
Make this look like a professional brand guidelines page.
Save as: "Slide_03_LogoSystem.png" in the Brand Kit Slides folder.Now that you’ve got your logo slide set, generate the rest of your brand kit slides. Send these messages one at a time.
Create a professional brand kit cover slide for [YOUR BRAND NAME].
Include:
- Brand name prominently displayed
- Subtitle: "Brand Guidelines"
- My tagline: "[YOUR TAGLINE]"
- Date: December 2024
Design this using our brand's visual language based on the logo we just created. Clean, modern, professional. This is the first impression of our brand kit.
Save as: "Slide_01_Cover.png"
Create a "Brand Overview" slide with these sections:
Brand Positioning: [Write 2-3 sentences about what you do, who it's for, and why it matters]
Target Audience: [YOUR TARGET CUSTOMER description]
Brand Personality: [YOUR 3 ADJECTIVES]
Layout: Clean, professional design with good visual hierarchy. Use our brand's visual style.
Save as: "Slide_02_BrandOverview.png"You already generated the Logo System slide in the previous phase. You should have: "Slide_03_LogoSystem.png"
Create a "Logo Usage Guidelines" slide showing DOs and DON'Ts.
Split into two columns:
LEFT — DO, with green checkmarks:
- Logo on clean white background
- Logo on solid brand color
- Proper spacing/padding
- Appropriate sizing
RIGHT — DON'T, with red X marks:
- Stretched or distorted logo
- Logo on busy background
- Logo too small
- Altered colors
Use visual examples with our actual logo, not just text descriptions.
Save as: "Slide_04_LogoGuidelines.png"
Create a "Color Palette" slide showing our brand colors.
Based on the logo you created, extract and display:
- Primary color, large swatch with HEX and RGB codes
- Accent color, large swatch with HEX and RGB codes
- 2-3 neutral/supporting colors, swatches with codes
Include usage notes for each color, such as "Primary: Headlines, key elements" or "Accent: CTAs, energy, highlights."
Professional layout with large, clear swatches.
Save as: "Slide_05_ColorPalette.png"
Create a "Typography System" slide based on the fonts used in our logo.
Show:
Primary Font: [The font style from the logo]
- Large heading sample: "The Quick Brown Fox" (48pt)
- Subheading sample: "The Quick Brown Fox" (32pt)
- Usage: Headlines, key messaging
Secondary Font: [Complementary font]
- Body text sample: Full paragraph at 16pt
- Usage: Body copy, descriptions
Display font specimens with different sizes and weights. Professional typography presentation.
Save as: "Slide_06_Typography.png"
Create a "Brand Voice & Messaging" slide with:
Brand Voice: how we communicate. Write 3-4 bullet points describing your tone, such as "Professional but approachable," "Direct without being blunt," or "Energetic without being juvenile."
Core Messages: what we say. Write 3-5 key messages about your brand, such as "Time you'll never bill is money you'll never see."
Tagline: displayed prominently as "[YOUR TAGLINE]"
Clean layout with good hierarchy. Professional brand guidelines aesthetic.
Save as: "Slide_07_BrandVoice.png"
Create a "Social Media Assets" slide showing a grid with 6 labeled sections for different platforms:
1. Profile Picture (1080x1080px) — square
2. Twitter/X Header (1500x500px) — wide
3. LinkedIn Cover (1584x396px) — wide
4. Instagram Story Template (1080x1920px) — vertical
5. Facebook Cover (820x312px) — wide
6. YouTube Thumbnail (1280x720px) — landscape
Show the dimensions and aspect ratios clearly with placeholder frames. We'll generate the actual assets next.
Professional grid layout with platform icons.
Save as: "Slide_08_SocialGrid.png"
Create a "Brand Applications" slide showing 4-6 mockups of how our brand could be used in the real world:
- Business card design
- Website header
- Email signature
- Product/app interface
- Marketing material
- Social media post
These should be visual mockups showing our logo, colors, and typography in context. Professional presentation showing brand versatility.
Save as: "Slide_09_Applications.png"
Create a "Quick Reference" one-page cheat sheet with:
- Small primary logo at the top
- Color palette, compact swatches with HEX codes
- Font names, Primary & Secondary
- Tagline
- One-sentence brand positioning
This is a scannable, grab-and-go reference. Everything on one slide. Compact but clear. Could be printed as a reference card.
Save as: "Slide_10_QuickReference.png"Use these prompts to create everything you’ll need to set up social media accounts for your brand.
Create a professional social media profile picture for [YOUR BRAND NAME] (1080x1080px square).
Use our simplified logo or icon optimized for circular crops. Works at small sizes (48x48px). Clean, bold design using our brand colors.
Should feel [YOUR 3 ADJECTIVES] and be instantly recognizable as our brand.
Save as: "Social_ProfilePicture.png" in the Social Assets folder.Create a Twitter/X header banner (1500x500px) for [YOUR BRAND NAME].
Include:
- Our logo or logo elements
- Our tagline: "[YOUR TAGLINE]"
- Our brand colors
- Leave safe space for circular profile picture on left side
Clean, professional composition that communicates [KEY BRAND MESSAGE]. Appeals to [TARGET CUSTOMER].
Save as: "Social_TwitterHeader.png" in the Social Assets folder.Create a LinkedIn cover banner (1584x396px) for [YOUR BRAND NAME].
More professional/corporate than Twitter. Include our logo, tagline, and brand colors. Leave space for profile picture on left.
Communicates credibility and expertise to potential clients/partners. Professional business aesthetic.
Save as: "Social_LinkedInCover.png" in the Social Assets folder.Create an Instagram Story template (1080x1920px) for [YOUR BRAND NAME].
Reusable branded template with:
- Branded design elements, such as borders, shapes, or patterns
- Small logo in corner
- Clear content area in middle for photos/text
- Brand color accents
Professional but Instagram-appropriate. Frames content while maintaining brand presence.
Save as: "Social_InstagramStory.png" in the Social Assets folder.Create a Facebook cover (820x312px) for [YOUR BRAND NAME].
Include logo on the right side, tagline, and brand colors. Leave space for circular profile picture bottom left.
Community-focused, welcoming, professional. Works with Facebook's interface.
Save as: "Social_FacebookCover.png" in the Social Assets folder.Create a YouTube thumbnail template (1280x720px) for [YOUR BRAND NAME].
Reusable template with:
- Strong branded design elements
- Small logo in corner
- Large text area for video titles, readable at small sizes
- High contrast for visibility
- Placeholder text: "VIDEO TITLE HERE"
Stands out in YouTube feed while maintaining brand consistency.
Save as: "Social_YouTubeThumbnail.png" in the Social Assets folder.Use this slide order:
Export the presentation as a PDF:
Your final folder structure should include the brand kit PDF, the Logo Files folder, the Social Assets folder, and the Brand Kit Slides folder.
When you’re done, you should have a shareable 10-slide brand guidelines PDF, 5 logo file variations, 6 social media assets, an organized folder structure, and a cohesive brand system that is ready to use.
Keep going
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