Chip variables missing in mytheme

[vaelu]

In the latest version, the following variables are missing in themes/mytheme/variables/_misc.scss:

$chipFocusBg: $shade500 !default;
$chipFocusTextColor: $textColor !default;

This leads to the following error:

[sass] Undefined variable.
   ╷
76 │                 background: $chipFocusBg;
   │                             ^^^^^^^^^^^^
   ╵
  src\themes\theme-base\components\input\_chips.scss 76:29  @import
  src\themes\theme-base\_components.scss 14:13              @import
  src\themes\mytheme\theme.scss 3:9                         root stylesheet