D6518: guard against themes without a valid shadow

[Anthony Fieroni]

anthonyfieroni added inline comments.

INLINE COMMENTS

> dialogshadows.cpp:270
>  {
>      m_shadowPixmaps << q->pixmap(element);
>  }

Validate element (hasElement and > 0) or add default pixmap.

REPOSITORY
  R242 Plasma Framework (Library)

REVISION DETAIL
  https://phabricator.kde.org/D6518

To: mart, #plasma
Cc: anthonyfieroni, davidedmundson, plasma-devel, #frameworks, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart, lukas
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