sets the way of color presentation
webix.ui({
  view:"colorboard",
  template:"<div style=\"width:100%;height:100%;background-color:{obj.val}\"></div>"
});
You can customize your colorboard using template with CSS classes:
webix.ui({
    container:"box",
    view:"colorboard",
    cols    :7,
    rows    :4,
    width   :600,
    height  :370,
    template:"<div class=\"value_cell webix_color_item\">" +
            "<div>{obj.val}</div>" +
            "<div class=\"color_block\" style=\"background:{obj.val};\"></div>" +
            "</div>"
});
In the code above you can see the CSS class names. The usage rules for them can be found in the Related sample.