Set a background color
To change the background color of all slides, write:
CODE
body {
background-color: #191919; /*Insert your hex or rgb color code instead of #191919*/
}
To give the title slide a different color, write:
CODE
.reveal .title-slide .slide-background-content {
background-color: #fcba03; /*Insert your hex or rgb color code instead of #fcba03*/
}