Uploaded May 2026 | Updated September 2026, 3 weeks ago

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Learn how to build your first custom user interface for a JUCE audio plugin. In this tutorial, we introduce a clean way to manage colors, fonts, and image assets, and use it to replace the default JUCE editor with a real custom background. This is Part 4 of the JUCE Sampler Plugin series and the start of our deep dive into plugin UI design.

If you've ever wondered how plugin developers get from a generic gray window to something that actually looks like a product, this is the foundation you need.

📁 Follow along on GitHub:
github.com/TheAudioProgrammer/JuceSamplerAudioPlugin

(Switch to the "4-user-interface-1" branch and check the commit history to follow each step)

⏰ Timestamps:
00:00 - Introduction & What We're Building
01:56 - The Graphic Design Handoff
02:59 - Setting Up Assets (Images, Fonts, CMake)
06:46 - Creating the SamplerLookAndFeel Header
08:25 - Colors & Binary Data
09:31 - Font Typefaces & Accessor Functions
13:49 - Drawing the Background Image
16:55 - Abstracting Window Dimensions & Plugin Processor
18:34 - Recap & What's Next

🔗 Resources mentioned:
- Inter font family: fonts.google.com/specimen/Inter

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