🔄Titlebar Changer

Personalize the look of your Minecraft window titlebar — tweak colors, text, corners, and borders on Windows.

• 🪟 On Windows 11, the mod unlocks the full range of customization features, such as custom colors, rounded corners,
  and border styling.
• 🪟 On Windows 10, support is limited by the operating system: you can only switch the titlebar between light and
  dark modes.

✅ Requirements

• Windows 10 or Windows 11 (other OS are not supported)
• One of: Forge or Fabric/Quilt
• (Optional, for in‑game settings): Cloth Config API
• (Optional, Fabric/Quilt config UI): Mod Menu

🎨 Examples

Below are examples of custom titlebar colors (Windows 11):

🐱 Fun Example

And here’s an extra — the Titlebar Changer with my cat wearing a crown 👑

🔗 Source Code

The source code for the mod is available on GitHub. If you encounter any issues or have suggestions for improvements, please feel free to leave them in the Issues section on GitHub.

⚙️ Configuration

You can configure the mod either in‑game (recommended) or by editing the JSON file.

In‑game config

• Forge: Main Menu → Mods → Titlebar Changer → Config
• Fabric/Quilt: Install Mod Menu + Cloth Config, then Main Menu → Mods → Titlebar Changer

Config file

The file lives at: config/titlebar_settings.json

{
  // Window Theme: LIGHT (0), DARK (1), CUSTOM (2)
  // Controls the overall appearance of the titlebar
  // Restriction: Custom only works on Windows 11+
  "theme": "1",

  // Window Corners: SYSTEM_DEFAULT (0), NO_ROUNDING (1), ROUNDED (2), ROUNDED_SMALL (3)
  // Controls how window corners are rendered
  // Restriction: Only works on Windows 11+
  "corner": "0",

  // Caption (titlebar) background color
  // Format: #RRGGBB
  // Restriction: Only works when theme is CUSTOM (2)
  "captionColor": "#FF0505",

  // Window border color
  // Format: #RRGGBB
  // Restriction: Only works when theme is CUSTOM (2)
  "borderColor": "#FF00FF",

  // Title text and button color
  // Format: #RRGGBB
  // Restriction: Only works when theme is CUSTOM (2)
  "textColor": "#FF00FF"
}

Option reference

Option	Values / Format	Notes
theme	0 = Light • 1 = Dark • 2 = Custom	On Windows 10 only 0/1 are supported. Full customization (2) works only on Windows 11.
corner	0 = System default • 1 = No rounding • 2 = Rounded • 3 = Rounded small	Available only on Windows 11.
captionColor	#RRGGBB	Used only with theme = 2 (Custom).
borderColor	#RRGGBB	Used only with theme = 2 (Custom).
textColor	#RRGGBB	Used only with theme = 2 (Custom).

Tip: restart the game after manual edits.

❓ FAQ

Does it work on Linux or macOS?
The mod uses Windows APIs. On non‑Windows systems it will load in dormant mode (inactive, no changes applied).

Does it work in fullscreen?
The titlebar is part of the windowed UI. Fullscreen modes that hide the window frame will also hide the titlebar.

Can I use hex colors with alpha (#AARRGGBB)?
No — use #RRGGBB.