Examine source code of Material Blue

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#28b6f6",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Material Blue",
  "manifest_version": 2,
  "description": "A theme made using two different blues from Google's color palette for material design."
}