Sleek - A Launchbox Desktop Theme
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Sleek
Sleek is a modern dark-mode theme for LaunchBox Desktop, built around a Midnight Glass / dark navy style.
It redesigns the default LaunchBox Desktop experience with a cleaner top rail, a polished Game Details view, improved responsive layouts, and a more organized presentation for large game libraries.
Features
Modern dark navy color palette
Cleaner horizontal top rail for browsing platforms, categories, playlists, and filters
Persistent vertical navigation for Home, Images, Info, Achievements, and Related
Cleaner Home/details layout with play controls, metadata, rating, and RetroAchievements status
Improved Info section with quick facts, About text, and a readable Game Details metadata table
Improved responsive layout for Info, Images, Achievements, and Related sections
Custom bottom bar for displayed games, RetroAchievements status, music controls, and size controls
Cleaner top bar with search, filters, menu, and window controls
Smooth horizontal scrolling behavior in supported views
Installation
Download and extract the zip.
Place the Sleek folder here:
LaunchBox\LBThemes\Sleek
Open LaunchBox.
Go to:
Tools > Options > Visuals > Theme
Select Sleek.
If Windows blocks the included plugin DLL, right-click the DLL, open Properties, and choose Unblock.
Notes
This theme is for LaunchBox Desktop, not Big Box.
For best results, set LaunchBox’s Dialog Theme colors to match the Sleek palette under:
Tools > Options > Visuals > Dialog Theme
Recommended colors:
Accent: #4EA3FF
Highlight: #123A6A
Background: #071425
Border: #1D3A5F
Foreground: #E8EEF7
Contrast: 0.37
Credits
Sleek is based on the Big Details theme, with extensive redesign work.
Submitter
Fredsthebest
Submitted
05/31/2026
Category
Custom Themes