[MacPorts] #46507: QtCurve update with support for Qt5

[MacPorts]

#46507: QtCurve update with support for Qt5
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  Reporter:  RJVB         |      Owner:  mkae
      Type:  enhancement  |     Status:  accepted
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch maintainer
      Port:  QtCurve      |
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Comment (by RJVB):

 > With Qt's original style Qt can't be run smoothly on OSX unfortunately.

 That isn't really true either. The layout issues we know happened only
 with KDE, and have been addressed in KF5. The only issue with standard
 (cross-platform) Qt applications is that they tend to use the same big
 font (Lucida Sans 13) everywhere and use very generous widget spacing.
 That's what I meant with "as if designed for the visually impaired".
 The benefits of QtCurve +qtonly will not be as complete because the style
 cannot change the font used, but it should be a start.

 I'll look into changing the default then. I've never touched this part of
 the code, so I don't know how much work it'll be.

 Alternatively we could just ship a `stylerc` and instruct users where to
 install that file if they want to use it.

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Ticket URL: <https://trac.macports.org/ticket/46507#comment:29>
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