Setting Up and Customizing a Dark Mode Text Editor
- Posted on
- By Mostafa Yousef
- In Editor, Tutorials
Table of contents
- Key Takeaways
- The Benefits of Dark Mode
- Step-by-step guide to setting up Froala's dark mode
- Customize Your Editor Theme
- Create Your Own Theme
- Detecting User Preferences and Adjusting Themes
- Using CSS
- Using JavaScript
- Best Practices for Dark Mode in Rich Text Editors
- Conclusion
- FAQ
- Is dark mode better for your eyes?
- What are the benefits of dark mode on a computer?
- Why is dark mode bad in some cases?
- Can I create my own custom theme for Froala's dark mode?

The demand for dark mode interfaces has been steadily rising in modern UI/UX design trends. Users actively seek out applications and tools that provide a visually pleasing and comfortable dark mode experience.
Froala, a popular rich text editor, empowers developers to easily customize the user interface and experience, including a captivating dark mode option.
Key Takeaways
- Dark mode can improve user experience by reducing eye strain, enhancing readability, and creating a more immersive environment.
- Implementing dark mode can benefit developers by meeting user expectations and improving accessibility.
- Froala makes it easy for developers to customize the editor’s appearance, including enabling a dark mode theme.
The Benefits of Dark Mode
Enabling Froala’s dark mode offers several advantages for both users and developers.
From a user’s perspective, a dark mode can:
- Reduce eye strain – The dimmer interface is easier on the eyes, especially in low-light conditions.
- Improve readability – The high-contrast colors make text more legible.
- Create a more immersive experience – The dark theme establishes a focused, visually appealing environment.
For developers, implementing a dark mode option can:
- Enhance the overall user experience – Users increasingly expect and appreciate dark mode functionality.
- Increase accessibility – The improved contrast benefits users with visual impairments.
By providing a well-designed dark mode, you can deliver a more comfortable and accessible text editing experience for your users.
Step-by-step guide to setting up Froala’s dark mode
Let’s set up a dark mode text editor.
Step 1: Get started
Follow the Froala installation guide to set up your preferred framework. For a simple webpage using Froala’s CDN links, you can use the following code:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0, maximum-scale=1.0"> <link href='https://cdn.jsdelivr.net/npm/froala-editor@latest/css/froala_editor.pkgd.min.css' rel='stylesheet' type='text/css'> </head> <body> <div id="example"></div> <script type='text/javascript' src='https://cdn.jsdelivr.net/npm/froala-editor@latest/js/froala_editor.pkgd.min.js'></script> <script> var editor = new FroalaEditor('#example'); </script> </body> </html>
If you prefer hosting Froala locally, you can download it and start a free trial.
Step 2: Include the theme CSS file
Froala offers several built-in themes, including Black, Gray, and Royal. You need to include the CSS file for the Dark theme to use it in your project.
https://cdn.jsdelivr.net/npm/froala-editor@latest/css/themes/dark.min.css
Step 3: Set the theme in the configuration
To enable editor dark mode, configure the theme
option when initializing the Froala editor:
new FroalaEditor('div#eg-dark-theme', { theme: 'dark' });
This will add the dark-theme
class to the Froala .fr-box
element, allowing the CSS rules defined in the Dark theme to be applied without conflict with other CSS on the page.
Step 4: Run your app
When you run your app, you should see Froala in the dark mode.
Note: To use Froala in a production environment, don’t forget to get a valid API key.
Customize Your Editor Theme
Froala’s built-in Dark theme only changes the color of the top toolbar. To make the entire editor interface darker, you can add custom CSS rules.
Here’s an example of CSS rules to turn the editor’s editing area and bottom toolbar into a darker color:
.dark-theme.fr-box.fr-basic .fr-element { background: #4e4d4d; color: #f0efef; } .dark-theme .fr-second-toolbar { background: #353535; }
These rules will make the editor’s content area and bottom toolbar adopt a darker background color, with the text displayed in a lighter shade. This creates a more consistent dark mode appearance throughout the editor.
By leveraging the flexibility of CSS, you can further customize the Froala editor’s appearance to match the overall branding and design of your application.
Create Your Own Theme
Froala allows developers to create their own custom themes. This empowers you to tailor the editor’s appearance and branding to match your application or website.
To create a custom theme:
- Write your CSS rules in a separate file, e.g. “awesome.css”.
- Start each CSS rule with “.awesome-theme” to avoid conflicts with other styles.
- Place the “awesome.css” file in the themes folder on your server.
- Add a link to your theme in your application.
Once you’ve defined your custom theme, you can apply it to the Froala editor by setting the theme
option when initializing the editor. For example:
new FroalaEditor('div#eg-dark-theme', { theme: 'awesome' });
This allows you to fully customize the appearance of the text editor, including colors, fonts, and other visual elements. By aligning the editor’s design with your application’s branding, you can create a cohesive and visually appealing user interface.
Detecting User Preferences and Adjusting Themes
You can also detect the user’s system mode (light or dark) and automatically adjust the editor’s theme accordingly. This provides a seamless transition between light and dark modes without requiring the user to manually switch settings.
Using CSS
When creating a new theme, you can use the prefers-color-scheme
media query in your CSS. This media query allows you to detect the user’s preferred color scheme and apply different styles based on that preference:
/* Light mode styles */ .custom-theme .froala-editor { --text-color: #333; --background-color: #fff; } /* Dark mode styles */ @media (prefers-color-scheme: dark) { .custom-theme .froala-editor { --text-color: #f1f1f1; --background-color: #333; } }
The default styles are set for a light mode interface. When the media query detects the user’s system is in dark mode, it overrides the text and background colors to create a visually pleasing dark mode experience.
Using JavaScript
Alternatively, you can use the window.matchMedia("(prefers-color-scheme: dark)")
expression to check the user’s system mode and set the appropriate theme:
new FroalaEditor('div#eg-dark-theme', { theme: window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "royal" });
By leveraging these techniques, you can ensure that Froala’s dark mode is seamlessly integrated into your application, providing users with a consistent and comfortable experience regardless of their system preferences.
Best Practices for Dark Mode in Rich Text Editors
When it comes to best practices for using dark mode in rich text editors like Froala, it’s important to consider factors such as contrast, readability, and accessibility.
Ensuring that the text and background colors provide sufficient contrast, while maintaining legibility, is crucial for providing a comfortable and usable experience for all users. Avoid using low-contrast color combinations, as this can make the text difficult to read and strain the user’s eyes.
Additionally, consider the accessibility implications of your dark mode implementation. Ensure that the color choices and contrast levels meet Web Content Accessibility Guidelines (WCAG) standards to support users with visual impairments or other accessibility needs.
When designing a dark mode theme for your Froala editor, pay close attention to the following:
- Contrast Ratio: Aim for a minimum contrast ratio of 4.5:1 between the text and background colors to ensure readability.
- Font Legibility: Choose fonts and font sizes that are easily readable, even in low-light environments.
- Consistent Styling: Maintain a consistent visual style throughout the editor, including the toolbar, menus, and other UI elements.
- Accessibility Considerations: Ensure that your dark mode theme meets WCAG guidelines for color contrast, text resizing, and other accessibility requirements.
By following these best practices, you can create a dark mode experience in your Froala editor that is not only visually appealing but also accessible and comfortable for all users.
Conclusion
Froala’s UI customization features, such as creating custom themes, empower developers to deliver a cohesive, visually appealing dark mode experience. By exploring Froala’s dark mode capabilities and implementing best practices, you can create text editors that not only meet the growing demand for dark mode but also enhance the overall user experience and accessibility.
As users increasingly seek out applications with thoughtful dark mode support, incorporating a well-designed and accessible option in your Froala-powered text editor can be a valuable differentiator. It’s a great way to improve the user experience and set your application apart.
So why not try editor dark mode today? Enable it with just a few lines of code and see how it can transform your text editing interface. Provide your users with a comfortable, focused, visually appealing dark mode experience they’ll love.
FAQ
Is dark mode better for your eyes?
Yes, dark mode can be better for your eyes in certain situations. The dimmer interface and higher contrast between text and background can reduce eye strain, especially in low-light environments. The reduced brightness and blue light exposure can also help minimize headaches and fatigue associated with prolonged screen time. However, it’s important to ensure that the dark mode implementation follows accessibility best practices to maintain readability and comfort for all users.
What are the benefits of dark mode on a computer?
Using dark mode on a computer can provide several benefits:
- Reduced eye strain: The lower brightness and contrast can be easier on the eyes, especially in low-light conditions.
- Improved battery life: Dark mode can reduce the power consumption of OLED and LCD displays, leading to longer battery life on laptops and mobile devices.
- Enhanced focus and productivity: The dimmer interface can create a more immersive and focused work environment, helping to minimize distractions.
- Aesthetic appeal: Many users find dark mode visually appealing and prefer the sleek, modern look it provides.
This explains why dark mode is better than normal mode in many cases. By leveraging the advantages of dark mode, you can create a more comfortable and efficient computing experience for your users.
Why is dark mode bad in some cases?
While dark mode can offer several benefits, it’s important to consider that dark mode may not be suitable for all users or all situations. Some potential drawbacks of dark mode include:
- Reduced Contrast: In some cases, the high contrast between dark backgrounds and light text can make it difficult for users with visual impairments or certain eye conditions to read the content.
- Increased Power Consumption: On non-OLED displays, dark mode may not provide significant power savings and could even increase power consumption in some cases.
- Difficulty Adapting: Users who are accustomed to light mode interfaces may find it challenging to adjust to a dark mode environment, especially if they need to switch between the two modes frequently.
- Compatibility Issues: Certain websites or applications may not be designed with dark mode in mind, leading to visual inconsistencies or rendering problems.
When implementing dark mode, it’s important to carefully consider the potential drawbacks and ensure that the design provides a comfortable and accessible experience for all users, regardless of their preferences or needs.
Can I create my own custom theme for Froala’s dark mode?
Yes, Froala allows developers to create their own custom themes. This empowers you to tailor the editor’s appearance and branding to match your application or website. You can define your own CSS rules and apply the custom theme when initializing the Froala editor.
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