in src/modules/utils/button.js [38:44]
function styleWithAttributeNameAndValue(attributeName, attributeValue, styleAttribute, styleValue) {
var els = document.querySelectorAll('[data-' + attributeName + '="' + attributeValue + '"]');
for (var i = 0; i < els.length; ++i) {
els[i].style[styleAttribute] = styleValue;
}
}