Answers for "how to change button in radio using css"

css change radio button style

.radiobutton{
	background-color: cyan;
  	border: none;
  	padding: 2px;
}

.radiobutton:hover{
	background-color: blue;
  	border: none;
  	padding: 10px;
}

how to change radio button color

Using CSS you can use filter: grayscale(1); for dark grey, or use filter: hue-rotate() for other colors, in case you don't want to create a custom element.