/**
 * Contains the themes installed into the app.
 */
export declare const AppThemeApi: import("@backstage/frontend-plugin-api").ExtensionDefinition<{
    config: {};
    configInput: {};
    output: import("@backstage/frontend-plugin-api").ConfigurableExtensionDataRef<import("@backstage/frontend-plugin-api").AnyApiFactory, "core.api.factory", {}>;
    inputs: {
        themes: import("@backstage/frontend-plugin-api").ExtensionInput<import("@backstage/frontend-plugin-api").ConfigurableExtensionDataRef<import("@backstage/frontend-plugin-api").AppTheme, "core.theme.theme", {}>, {
            singleton: false;
            optional: false;
        }>;
    };
    kind: "api";
    name: "app-theme";
    params: {
        factory: import("@backstage/frontend-plugin-api").AnyApiFactory;
    };
}>;
export declare const LightTheme: import("@backstage/frontend-plugin-api").ExtensionDefinition<{
    kind: "theme";
    name: "light";
    config: {};
    configInput: {};
    output: import("@backstage/frontend-plugin-api").ConfigurableExtensionDataRef<import("@backstage/frontend-plugin-api").AppTheme, "core.theme.theme", {}>;
    inputs: {};
    params: {
        theme: import("@backstage/frontend-plugin-api").AppTheme;
    };
}>;
export declare const DarkTheme: import("@backstage/frontend-plugin-api").ExtensionDefinition<{
    kind: "theme";
    name: "dark";
    config: {};
    configInput: {};
    output: import("@backstage/frontend-plugin-api").ConfigurableExtensionDataRef<import("@backstage/frontend-plugin-api").AppTheme, "core.theme.theme", {}>;
    inputs: {};
    params: {
        theme: import("@backstage/frontend-plugin-api").AppTheme;
    };
}>;