curl --location --request GET 'https://www.googleapis.com/calendar/v3/colors'
{
"calendar": {
"property1": {
"background": "string",
"foreground": "string"
},
"property2": {
"background": "string",
"foreground": "string"
}
},
"event": {
"property1": {
"background": "string",
"foreground": "string"
},
"property2": {
"background": "string",
"foreground": "string"
}
},
"kind": "calendar#colors",
"updated": "2019-08-24T14:15:22Z"
}