Steam Favorites

Using a web browser, you can find the ID in the url here:

In the steam client you can simply just Right-Click and 'Copy Page URL' and follow the above step

Path Parameters
fileId string — REQUIRED Example: 100

Query Parameters
style string One of: flat (default), flat-square, plastic, for-the-badge, social Example: flat
logo string One of the named logos (bitcoin, dependabot, gitlab, npm, paypal, serverfault, stackexchange, superuser, telegram, travis) or simple-icons. All simple-icons are referenced using icon slugs. You can click the icon title on simple-icons to copy the slug or they can be found in the slugs.md file in the simple-icons repository. Example: appveyor
logoColor string The color of the logo (hex, rgb, rgba, hsl, hsla and css named colors supported). Supported for named logos and Shields logos but not for custom logos. For multicolor Shields logos, the corresponding named logo will be used and colored. Example: violet
label string Override the default left-hand-side text (URL-Encoding needed for spaces or special characters!) Example: healthiness
labelColor string Background color of the left part (hex, rgb, rgba, hsl, hsla and css named colors supported). Example: abcdef
color string Background color of the right part (hex, rgb, rgba, hsl, hsla and css named colors supported). Example: fedcba
cacheSeconds string HTTP cache lifetime (rules are applied to infer a default value on a per-badge basis, any values specified below the default will be ignored). Example: 3600
link string[] Specify what clicking on the left/right of a badge should do. Note that this only works when integrating your badge in an <object> HTML tag, but not an <img> tag or a markup language.