Configure appearance

Molt uses a fixed light, Primer-derived visual palette. The effective appearance setting controls native macOS vibrancy rather than selectable color themes.

Open settings

Choose File → Settings…. Molt opens a separate settings window.

Turn native glass effects on or off

Under Appearance, change Use native glass effects.

The main and settings windows update immediately:

• Enabled applies a macOS HUD-style vibrancy material and semi-transparent surfaces.
• Disabled clears vibrancy and uses flatter opaque surfaces with reduced shadows.

Select Save to persist the setting. A live preview without Save is temporary and reverts the next time Molt loads its configuration.

Understand the fixed palette

This release uses:

• A light-only color scheme.
• A Primer Light-derived editor and Python syntax palette.
• System UI fonts and SF Mono fallbacks.
• Reduced-motion support through the macOS/browser preference.

There is no supported theme directory, dark mode, or theme selector in v0.2.7.

Other settings on the page

Python interpreter

The interpreter field is effective after Save and a full Molt relaunch. See Use a Python environment.

Launch at login

The TOML schema retains auto_launch for compatibility, but the settings UI does not expose it and this release has no login-item integration. Use macOS System Settings → General → Login Items when you need that behavior.

Tab count

The TOML schema contains tab_count, but the settings UI does not expose it and the frontend always creates four tabs. Editing the field does not change the current interface.

Reset appearance settings

Quit Molt, open:

~/Library/Application Support/molt/config.toml

and restore:

config.toml

[python]
interpreter = "python3"

[app]
auto_launch = false
tab_count = 4
native_effects = true

Relaunch Molt. If the TOML is unreadable or invalid, the application logs the error and uses defaults; there is no in-app configuration repair flow.