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Bug
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    Resolution: Invalid
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P1: Critical
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    None
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    5.15.1, 5.15.2
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    Windows 10 : Enterprise
Version : 1809
OS build : 17763.1577 
Japanese font looks different between Qt5.12.9 and Qt5.15.1.
It seems one with Qt5.15.1 is not anti-aliased. 
How to reproduce : 
Please use  QTBUG88946.zip
 
- relates to
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QTBUG-96689 Qt5.15 : Change Japanese fallback font to "Yu Gothic UI"
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     - Closed
 
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- resulted from
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QTBUG-81215 When a child widget is added to a parent which has its own font, then this font is not propagated to the child
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 - Closed
 
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