3 Specify lowercase or uppercase for hex colors.
11 The `--fix` option on the [command line](../../../docs/user-guide/cli.md#autofixing-errors) can automatically fix all of the problems reported by this rule.
15 `string`: `"lower"|"upper"`
19 The following patterns are considered violations:
25 The following patterns are *not* considered violations:
37 The following patterns are considered violations:
43 The following patterns are *not* considered violations: