fix(docs): Code in Theming Examples does not have a corresponding output

[lucivpav]

This resolves issue #1597. The code in docs did not correspond to the actual output. Futhermore the code was outdated, resulting in not doing what it was intended to do.

Before:

After:

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[DustyTheBot]

	Warnings
⚠️	There are no updates provided to CHANGELOG. Ensure there are no publicly visible changes introduced by this PR.

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Codecov Report

❗ No coverage uploaded for pull request base (master@f755bfc). Click here to learn what that means.
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@@            Coverage Diff            @@
##             master    #1616   +/-   ##
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  Coverage          ?   71.53%           
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  Files             ?      848           
  Lines             ?     6932           
  Branches          ?     1977           
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  Hits              ?     4959           
  Misses            ?     1967           
  Partials          ?        6

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@424ba3c). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1616   +/-   ##
=========================================
  Coverage          ?   71.28%           
=========================================
  Files             ?      846           
  Lines             ?     6938           
  Branches          ?     1982           
=========================================
  Hits              ?     4946           
  Misses            ?     1986           
  Partials          ?        6

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