Add settings.ini setting and hwengine param to disable holiday silliness (hat changes, etc.)
settings.ini: In section [misc], add "holidaySilliness=false"
hwengine: Add --no-holiday-silliness to command-line
; This file can be edited to change the style of the application
; See Styling Qt Quick Controls 2 in the documentation for details:
; http://doc.qt.io/qt-5/qtquickcontrols2-styles.html
[Controls]
Style=Default
[Universal]
Theme=Light
;Accent=Steel
[Material]
Theme=Light
;Accent=BlueGrey
;Primary=BlueGray