Aesthetic is a theme engine for Android apps I built to solve a common problem: dynamic theming that actually works.

The Problem

Most Android apps either:

• Use static themes defined in XML
• Have complex, fragile dynamic theming systems
• Require massive architectural changes to support themes

The Solution

Aesthetic provides:

• Rx-based reactivity - Themes update automatically when changed
• Minimal setup - Drop-in solution with sensible defaults
• Material Design compliance - Works with Google's design system
• Performance - Efficient color calculations and caching

Usage

// Set primary color
Aesthetic.get()
  .colorPrimary(Res.color(R.color.md_indigo_500))
  .colorAccent(Res.color(R.color.md_pink_500))
  .apply()

// Subscribe to theme changes
Aesthetic.get()
  .colorPrimary()
  .subscribe { color ->
    // Update UI
  }

Impact

• 500+ stars on GitHub
• Used in production apps
• Inspired similar libraries

Open Source

Available on GitHub under MIT license.