Examine source code of RV1: AdventureBlox Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ff0000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "RV1: AdventureBlox Theme",
  "manifest_version": 2,
  "description": "Official theme for RV1: AdventureBlox on ROBLOX! Currently still in development. \n\nYou can find it here: <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/3ada363b1038e3650695f8a26ea592d453de0edbaefbb6431519ecf9e6985b01/https%3A//www.roblox.com/games/924265677/RV1\">https://www.roblox.com/games/924265677/RV1</a>\n\nBe sure to give me tips on how to improve @BrickWorkBuilder. ^_^"
}