niri/cfg/looknfeel.kdl


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blur {
    on
    passes 5
    offset 3.0
    noise 0.02
    saturation 1.5
}

// Enable blur behind the kitty terminal.
window-rule {
    match app-id="^kitty$"
    match app-id="TUI.float"

    background-effect {
        blur true
    }
}

// Enable blur behind the rofi.
layer-rule {
    match namespace="^rofi$"

    background-effect {
        blur true
    }
}

layer-rule {
    match namespace="waybar"
    match layer="top"
    
    // Main bar properties
    background-effect {
        xray true      // Use efficient x-ray blur or false for normal blur
        blur true
        noise 0.05
        saturation 3
    }

    // Optional: Blur for Waybar popups (menus)
    popups {
        opacity 0.5
        background-effect {
            xray true
            blur true
            noise 0.05
            saturation 3
        }
    }
}

layer-rule {
    // Matches the rofi namespace
    match namespace="^rofi$"
    
    // Enables the blur
    background-effect {
        blur true
    }

    // IMPORTANT: Match this to your Rofi theme's border-radius
    // If your Rofi theme has 12px corners, set it here too.
    geometry-corner-radius 12
}