declare global {
    namespace Cypress {
        interface Chainer<Subject> {
            /**
             * `have.css` matcher compares the computedColor, which is a rgb() value.
             * This custom matcher instead accept any valid CSS color format.
             *
             * @example
             *    cy.get('foo').should('have.color', 'white')
             *    cy.get('foo').should('have.color', '#fff')
             *    cy.get('foo').should('have.color', 'var(--q-primary)')
             */
            (chainer: 'have.color', type: string): Chainable<Subject>;
            /**
             * `have.css` matcher compares the computedColor, which is a rgb() value.
             * This custom matcher instead accept any valid CSS color format.
             *
             * @example
             *    cy.get('foo').should('have.backgroundColor', 'black')
             *    cy.get('foo').should('have.backgroundColor', '#000')
             *    cy.get('foo').should('have.backgroundColor', 'var(--q-dark)')
             */
            (chainer: 'have.backgroundColor', type: string): Chainable<Subject>;
        }
    }
}
export declare function registerColorAssertions(): void;