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Theme Loader

The BptThemeLoader component loads and applies BptThemeBuilder themes at runtime. It supports CSS, JSON, and SCSS ZIP formats from URLs, byte arrays, or base64 strings. JSON is the recommended format — it fully preserves component-specific overrides (popup colors, selected states, hover effects, etc.) which CSS and SCSS imports cannot restore. It can run as an invisible headless component or as a dropdown theme picker.

Theme Loader Parameters

Dropdown Mode

Headless Mode

Programmatic Config

Select Theme:

Disabled

Selected: Light

Component Preview (affected by loaded theme)

Checkbox preview

Switch preview

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Current Configuration

📋 [+]

<BptThemeLoader @ref="themeLoader"
                AutoLoad="false"
                OnThemeLoaded="HandleThemeLoaded" />

@code {
    private BptThemeLoader? themeLoader;

    private async Task ApplyTheme(string themeName)
    {
        if (themeName == "Light")
        {
            await themeLoader!.ClearThemeAsync();
            return;
        }
        var config = new BptThemeConfig { ThemeName = themeName };
        // Set theme colors...
        await themeLoader!.ApplyConfigAsync(config);
    }
}