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Without management, z-index values across an estate like Sky's can get messy real fast; leading to dreaded z-index: 999999999999; hotfixes.

Keeping our values in a map helps to keep things consistent and easier to maintain:

Tools

z-index values from our map can be accessed via the z-index() function from sky-toolkit-core/tools/functions.

// To output the color of a desired `key`.

.foo {
  color: z-index(key);
}