Help - included Barceloneta's backend.xml => richtext editor disappeared

hi,
in Plone 5
if in rules.xml i hide the section for Barceloneta's backend.xml

< ! - -
<xi:include href="++theme++barceloneta/backend.xml" />
- - >

<rules css:if-content="#portal-top">
  <!-- Attributes -->
  <copy attributes="*" css:theme="html" css:content="html" />
  <!-- Base tag -->
  <before css:theme="title" css:content="base" />
  <!-- Title -->
  <replace css:theme="title" css:content="title" />
  <!-- Pull in Plone Meta -->
  <after css:theme-children="head" css:content="head meta" />
  <!-- Don't use Plone icons, use the theme's -->
  <drop css:content="head link[rel='apple-touch-icon']" />
  <drop css:content="head link[rel='shortcut icon']" />
  <!-- CSS -->
  <after css:theme-children="head" css:content="head link" />
  <after css:theme-children="head" css:content="head style" />
  <!-- Script -->
  <after css:theme-children="head" css:content="head script" />
</rules>

then i dont see backend left bar for edit, folder contents, settings, for logged-in users,
but i can add/edit link, news-item in normal way: you have richtext editor for browsering items:

If i turn on Barceloneta's backend.xml in rules.xml

<xi:include href="++theme++barceloneta/backend.xml" />

then:

i dont see strang thing int theme/barceloneta/backend.xml

Many thanks for your times.

the code of theme/barceloneta/backend.xml is here:
https://pastebin.com/SUC6fXwy