src/js/theme/styleGenerator.js
function bgTextRuleString(className, options) {
    return classRule(className)
        .bg(options.background)
        .text(options.text)
        .build();
}
function bgTextRuleString(className, options) {
    return classRule(className)
        .bg(options.background)
        .text(options.text)
        .build();
}
function bgTextRuleString ( className , options ) { return classRule ( className ) . bg ( options . background ) . text ( options . text ) . build ( ) ; }
Creates a rule string for background and text colors.
@param {String} className - class name
@param {Objecr} options - options
@returns {String}
@ignore
Creates a rule string for background and text colors .