Customize the look and feel of your mobile app — no update request needed. Your app is an extension of your brand, and now you can style it like one. With the App Studio — Style tool, you can update your logo, background, brand colors, and layout — and see the changes live in your app immediately. No wait, no request — just instant updates.
When & Why to Use Style
- Rebranding or logo updates
- Seasonal refreshes (spring/summer/fall/winter)
- Testing new colors or imagery
Tutorial Video
This short walkthrough will show you exactly how to customize your app style from start to finish.
[COMING SOON]
What to Expect
You'll be able to update:
- Your logo
- Background (color or image)
- Primary, secondary, and action colors
- Variables like card radius and title and swiper dot colors
Step-by-Step: Styling Your App
🔔 Before You Start
The Gallus Customer Service team usually takes care of the initial setup, but you’re welcome to make adjustments anytime you want! It's important to note that any changes made here — including your logo, background image or color, and more — go live immediately in your app. Once you hit SAVE, your updates will be visible to all users right away. Make sure everything looks just right before saving!
- From the Quick Start page, click App Studio (starts on Home Screen)
OR under Customize App, click Style
This will open the App Studio in a new tab window.
🎨 Step 2: Add Your Logo
- Drag and drop or click to upload your logo
- Recommended Size: 560 width x 230 height (must build in padding)
- Click here for a Canva template
- Logo must be transparent and a png
- Choose whether to hide or show a white gradient behind your logo
Pro Tip: If you’re setting up Style for the first time, we recommend walking through all customization options — logo, background, colors, and variables — before hitting Save. This ensures your app has a completed look before your updates go live.
🎨 Step 3: Set Your Background Image or Color
- Use a solid background color by skipping the image upload
- Upload your own background image — this overrides any selected color
- Browse and select from our stock photo library
🎨 Step 4: Define Your Colors

- Load in your branding colors:
- Primary Color: your apps 'main' color, title bar, footer menu, titles
- Secondary Color: used for accents, buttons, titles
- Action Color: used for buttons and some navigation menus

Heads Up: You have to type in your hex colors into the color picker in order to change them from the defaults.
We’ll automatically alert you if any color doesn’t meet accessibility contrast guidelines.
Pro Tip: Walk through all customization options before saving to ensure your app looks its best the moment updates go live.✏️ Step 5: Fine-Tune Variables
- Adjust the Card Corner Radius on your content cards
- 0 = square, 6px = default light radius, 12px = rounded corners, 30px = extra rounded
- We recommend staying under 40px to provide a great user experience
- Optional Overrides
- Block Title Color and Swiper Dot Color (used for sliders)
- These auto-adjust based on your selected background color, but you can override them if needed.
Pro Tip: If you've gone through all customization options — logo, background, colors, and variables — and you are happy with the look and feel of your App now is the time to SAVE and let your customers view the changes!
⚠️ Advanced: Custom CSS
If you’re comfortable with advanced styling, you can input Custom CSS to override colors and more.
- Learn more about how Custom CSS in Style works.
Custom CSS is powerful, but use it with caution — incorrect code may cause your app to display incorrectly.