What Theme Park Does in One UI 9 and How to Install It
Theme Park in One UI 9 is a Good Lock add-on that lets you build and apply custom themes, icons, keyboard styles, and color schemes that go beyond Samsung’s default appearance settings while still integrating with the native interface for a smooth, consistent experience. To get started, open the Galaxy Store and search for Theme Park, then install or update it to the latest version (1.1.02.01 at the time of writing). This release is designed specifically with One UI 9 in mind and adds enhanced customization options and quality improvements for Samsung theme customization. After installation, open the Good Lock app and tap Theme Park to launch its main dashboard. Here you’ll see separate tabs for themes, icons, keyboard, and more, each tightly linked to One UI customization menus so your changes appear instantly across the interface.
Create a Custom Theme with One UI 9 Color Integration
Start with the Themes tab in Theme Park One UI 9 and tap the plus button to create a new theme. Pick a wallpaper first; Theme Park analyzes its palette and suggests matching system colors for menus, quick settings, and notifications. Samsung says it has improved color tuning and overall theme quality in the latest Theme Park version, so your generated palettes tend to look more balanced across light and dark areas. Adjust individual elements such as background color, accent color, and quick panel toggles to fine-tune your look, then save and apply the theme. Because Theme Park hooks into One UI 9 features, these colors sync with native settings: your Settings app, notifications shade, and many Samsung apps will update together. If you want a fallback, duplicate the default theme first so you can switch back with a single tap from the Themes list.
Customize Icons and Keep Calendar and Clock Live
Next, move to the Icons section for deeper Samsung theme customization. Choose a base icon pack or start a new one, then tweak shape, size, and background color for app icons to match your theme. The latest Theme Park update improves live icons and previews for the stock Calendar and Clock apps, fixing earlier cases where themed icons stopped showing the correct date or time. According to SamMobile, the update ‘brings three improvements, along with general bug fixes and usability enhancements’ to icon behavior and more. When designing an icon pack, frequently tap the preview area to check how Calendar and Clock look on your home screen. After saving, apply the icon set and confirm that the Calendar icon shows today’s date and the Clock icon matches the current time while still fitting your new One UI customization style.
Design New Keyboard Keycaps for Samsung Keyboard
Theme Park’s Keyboard tab is where One UI 9 features become very visual. The latest version adds enhanced keyboard customization with new keycap designs tailored for Samsung Keyboard on devices running One UI 9.0. Begin by selecting your current theme or create a new keyboard profile. You can adjust key shape, border thickness, background colors, and press effects, then align them with the color palette from your main theme so everything feels cohesive. Test readability by typing in the live preview: if letters look faint, increase contrast between keycap and text color. Because the keyboard theme plugs straight into Samsung Keyboard, you do not need to switch apps once it is saved—just set it as active in Theme Park and it appears everywhere you type, from messaging apps to email, bringing your custom One UI 9 look to everyday typing.
Advanced Tips: Mix, Match, and Keep Themes Stable
Once you are comfortable with basic One UI customization, start mixing multiple Theme Park profiles. For example, you can pair a dark, muted system theme with bold icon colors and a high-contrast keyboard so each area stays readable. The improved color tuning introduced in the latest update also benefits devices on earlier One UI versions, which is useful if you switch between phones. To avoid conflicts, change one area at a time—theme, icons, or keyboard—then use your phone normally for a day to catch any visibility issues. If a Calendar or Clock icon stops updating after heavy tweaks, return to Theme Park and reapply the icon pack so the live icons resync. Keep a few saved presets labeled by use case (Work, Night, Minimal) so you can swap complete looks in seconds without digging through separate settings menus.
