[
  {
    "namespace": "manifest",
    "types": [
      {
        "$extend": "PermissionNoPrompt",
        "choices": [
          {
            "type": "string",
            "enum": ["theme"]
          }
        ]
      },
      {
        "id": "ThemeColor",
        "choices": [
          {
            "type": "string"
          },
          {
            "type": "array",
            "minItems": 3,
            "maxItems": 3,
            "items": {
              "type": "integer",
              "minimum": 0,
              "maximum": 255
            }
          },
          {
            "type": "array",
            "minItems": 4,
            "maxItems": 4,
            "items": {
              "type": "number"
            }
          }
        ]
      },
      {
        "id": "ThemeExperiment",
        "type": "object",
        "properties": {
          "stylesheet": {
            "optional": true,
            "$ref": "ExtensionURL"
          },
          "images": {
            "type": "object",
            "optional": true,
            "additionalProperties": {
              "type": "string"
            }
          },
          "colors": {
            "type": "object",
            "optional": true,
            "additionalProperties": {
              "type": "string"
            }
          },
          "properties": {
            "type": "object",
            "optional": true,
            "additionalProperties": {
              "type": "string"
            }
          }
        }
      },
      {
        "id": "ThemeType",
        "type": "object",
        "properties": {
          "images": {
            "type": "object",
            "optional": true,
            "properties": {
              "additional_backgrounds": {
                "type": "array",
                "items": { "$ref": "ImageDataOrExtensionURL" },
                "maxItems": 15,
                "optional": true
              },
              "headerURL": {
                "$ref": "ImageDataOrExtensionURL",
                "optional": true,
                "deprecated": "Unsupported images property, use 'theme.images.theme_frame', this alias is ignored in Firefox >= 70."
              },
              "theme_frame": {
                "$ref": "ImageDataOrExtensionURL",
                "optional": true
              }
            },
            "additionalProperties": { "$ref": "ImageDataOrExtensionURL" }
          },
          "colors": {
            "type": "object",
            "optional": true,
            "properties": {
              "tab_selected": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "accentcolor": {
                "$ref": "ThemeColor",
                "optional": true,
                "deprecated": "Unsupported colors property, use 'theme.colors.frame', this alias is ignored in Firefox >= 70."
              },
              "frame": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "frame_inactive": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "textcolor": {
                "$ref": "ThemeColor",
                "optional": true,
                "deprecated": "Unsupported color property, use 'theme.colors.tab_background_text', this alias is ignored in Firefox >= 70."
              },
              "tab_background_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "tab_background_separator": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "tab_loading": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "tab_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "tab_line": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_text": {
                "$ref": "ThemeColor",
                "optional": true,
                "description": "This color property is an alias of 'bookmark_text'."
              },
              "bookmark_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_border": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_separator": {
                "$ref": "ThemeColor",
                "optional": true,
                "deprecated": "This color property is ignored in Firefox >= 89."
              },
              "toolbar_top_separator": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_bottom_separator": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_vertical_separator": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "icons": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "icons_attention": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "button_background_hover": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "button_background_active": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "popup": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "popup_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "popup_border": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_focus": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_text_focus": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_border_focus": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "popup_highlight": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "popup_highlight_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "ntp_background": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "ntp_card_background": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "ntp_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "sidebar": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "sidebar_border": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "sidebar_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "sidebar_highlight": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "sidebar_highlight_text": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_highlight": {
                "$ref": "ThemeColor",
                "optional": true
              },
              "toolbar_field_highlight_text": {
                "$ref": "ThemeColor",
                "optional": true
              }
            },
            "additionalProperties": { "$ref": "ThemeColor" }
          },
          "properties": {
            "type": "object",
            "optional": true,
            "properties": {
              "additional_backgrounds_alignment": {
                "type": "array",
                "items": {
                  "type": "string",
                  "enum": [
                    "bottom",
                    "center",
                    "left",
                    "right",
                    "top",
                    "center bottom",
                    "center center",
                    "center top",
                    "left bottom",
                    "left center",
                    "left top",
                    "right bottom",
                    "right center",
                    "right top"
                  ]
                },
                "maxItems": 15,
                "optional": true
              },
              "additional_backgrounds_tiling": {
                "type": "array",
                "items": {
                  "type": "string",
                  "enum": ["no-repeat", "repeat", "repeat-x", "repeat-y"]
                },
                "maxItems": 15,
                "optional": true
              },
              "color_scheme": {
                "optional": true,
                "type": "string",
                "enum": ["auto", "light", "dark", "system"]
              },
              "content_color_scheme": {
                "optional": true,
                "type": "string",
                "enum": ["auto", "light", "dark", "system"]
              }
            },
            "additionalProperties": { "type": "string" }
          }
        },
        "additionalProperties": { "$ref": "UnrecognizedProperty" }
      },
      {
        "id": "ThemeManifest",
        "type": "object",
        "description": "Contents of manifest.json for a static theme",
        "$import": "manifest.ManifestBase",
        "properties": {
          "theme": {
            "$ref": "ThemeType"
          },
          "dark_theme": {
            "$ref": "ThemeType",
            "optional": true
          },
          "default_locale": {
            "type": "string",
            "optional": true
          },
          "theme_experiment": {
            "$ref": "ThemeExperiment",
            "optional": true
          },
          "icons": {
            "type": "object",
            "optional": true,
            "patternProperties": {
              "^[1-9]\\d*$": { "type": "string" }
            }
          }
        }
      },
      {
        "$extend": "WebExtensionManifest",
        "properties": {
          "theme_experiment": {
            "$ref": "ThemeExperiment",
            "optional": true
          }
        }
      }
    ]
  },
  {
    "namespace": "theme",
    "description": "The theme API allows customizing of visual elements of the browser.",
    "types": [
      {
        "id": "ThemeUpdateInfo",
        "type": "object",
        "description": "Info provided in the onUpdated listener.",
        "properties": {
          "theme": {
            "type": "object",
            "description": "The new theme after update"
          },
          "windowId": {
            "type": "integer",
            "description": "The id of the window the theme has been applied to",
            "optional": true
          }
        }
      }
    ],
    "events": [
      {
        "name": "onUpdated",
        "type": "function",
        "description": "Fired when a new theme has been applied",
        "parameters": [
          {
            "$ref": "ThemeUpdateInfo",
            "name": "updateInfo",
            "description": "Details of the theme update"
          }
        ]
      }
    ],
    "functions": [
      {
        "name": "getCurrent",
        "type": "function",
        "async": true,
        "description": "Returns the current theme for the specified window or the last focused window.",
        "parameters": [
          {
            "type": "integer",
            "name": "windowId",
            "optional": true,
            "description": "The window for which we want the theme."
          }
        ]
      },
      {
        "name": "update",
        "type": "function",
        "async": true,
        "description": "Make complete updates to the theme. Resolves when the update has completed.",
        "permissions": ["theme"],
        "parameters": [
          {
            "type": "integer",
            "name": "windowId",
            "optional": true,
            "description": "The id of the window to update. No id updates all windows."
          },
          {
            "name": "details",
            "$ref": "manifest.ThemeType",
            "description": "The properties of the theme to update."
          }
        ]
      },
      {
        "name": "reset",
        "type": "function",
        "async": true,
        "description": "Removes the updates made to the theme.",
        "permissions": ["theme"],
        "parameters": [
          {
            "type": "integer",
            "name": "windowId",
            "optional": true,
            "description": "The id of the window to reset. No id resets all windows."
          }
        ]
      }
    ]
  }
]