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ThemeForge: GTK Theme Color Customizer Plugin

A standalone GUI application that wraps popular GTK themes (Layan, Orchis, etc.) and lets users pick any accent color via a color picker, then auto-generates the modified theme files and installs them system-wide. Users point it at their theme directory, select their desired accent color, and ThemeForge rewrites the SCSS/CSS variables and recompiles the theme in seconds.

PLUGIN

15 weeks • 70% confidence

Value Proposition

Eliminates the need to fork themes or manually edit code. Works with any GTK theme that uses CSS variables. One-click color swaps. No technical knowledge required. Faster and more reliable than manual edits.

Target Audience

Linux desktop users aged 25-45 who use GTK themes but are frustrated by locked accent colors; primarily Ubuntu, Fedora, and Arch users

Key Features

  • Drag-and-drop color picker with hex/RGB input
  • Live preview of theme before applying
  • Batch recompile of SCSS to CSS for the selected theme
  • And more, with full implementation detail...

Tech Stack

Python 3.10+ PyQt6 or GTK4 (GUI framework) dart-sass (SCSS compiler) Stripe API (payments)
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Original Problem

Linux desktop theme customization is limited to preset color schemes, forcing users to accept unwanted aesthetic choices

Linux users who adopt GTK themes like Layan are locked into fixed accent color options (e.g., purple) that don't match their personal preferences or workflow aesthetics. They cannot easily customize the theme's core visual elements without forking the project or manually editing code, creating friction between wanting a polished theme and needing visual control. Current solutions require either accepting the default colors or abandoning the theme entirely.

Score: 17.5%