Issue #2630592 by anil280988, hussainweb, drupal.ninja03, Cottser,...

ABOUT STABLE

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Stable is a base theme with minimal markup and very few classes. It functions

as a backwards compatibility layer for Drupal 8's core markup and CSS. Stable

allows markup and styling to evolve throughout the life of Drupal 8, while still

providing themes a stable base for the clean, minimal markup provided by core.

Stable is the default base theme; it provides minimal markup and very few

CSS classes. If you prefer more structured markup see the Classy base theme.

If you browse Stable's contents, you will find copies of all the Twig templates

and CSS files provided by core. This ensures that changes made to core markup

and styling do not affect themes using Stable as a base theme.

Stable allows core markup and styling to evolve by functioning as a backwards

compatibility layer for themes against changes to core markup and CSS. If you

browse Stable's contents, you will find copies of all the Twig templates and

CSS files provided by core.

Stable will be used as the base theme if no base theme is set in a theme's

.info.yml file. To opt out of Stable you can set the base theme to false in

your theme's .info.yml file (see the warning below before doing this):

  base theme: false

Warning: Themes that opt out of using Stable will need continuous maintenance as

core changes, so only opt out if you are prepared to keep track of those changes

and how they affect your theme.

Warning: Themes that opt out of using Stable as a base theme will need

continuous maintenance as core changes, so only opt out if you are prepared to

keep track of those changes and how they affect your theme.

ABOUT DRUPAL THEMING

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