!!!
%html{:lang => "en", "ng-csp": "no-unsafe-eval" }
  %head{"data-hook" => "admin_inside_head"}
    = render :partial => 'spree/admin/shared/head'

  %body.admin
    - if content_for?(:main_ng_app_name)
      - if content_for?(:main_ng_ctrl_name)
        %div{ "ng-app" => yield(:main_ng_app_name).strip.html_safe, "ng-controller" => yield(:main_ng_ctrl_name).strip.html_safe }
          = render :partial => 'spree/layouts/admin_body'
      - else
        %div{ "ng-app" => yield(:main_ng_app_name).strip.html_safe }
          = render :partial => 'spree/layouts/admin_body'
    - else
      = render :partial => 'spree/layouts/admin_body'

!!!
%html{:lang => "en", "ng-csp": "no-unsafe-eval" }
  %head{"data-hook" => "admin_inside_head"}
    = render :partial => 'spree/admin/shared/head'

  %body.admin{ "class": ("admin-v2" if feature?(:admin_style_v2, spree_current_user)) }
    - if content_for?(:main_ng_app_name)
      - if content_for?(:main_ng_ctrl_name)
        %div{ "ng-app" => yield(:main_ng_app_name).strip.html_safe, "ng-controller" => yield(:main_ng_ctrl_name).strip.html_safe }
          = render :partial => 'spree/layouts/admin_body'
      - else
        %div{ "ng-app" => yield(:main_ng_app_name).strip.html_safe }
          = render :partial => 'spree/layouts/admin_body'
    - else
      = render :partial => 'spree/layouts/admin_body'

Add `admin-v2` on admin body if `admin_style_v2` feature toggled on
Add `admin-v2` on admin body if `admin_style_v2` feature toggled on
