alerts: fix alpha blending

old-commit-hash: ace39431eb
4 years ago · 9643e0fcdd
parent eb0fdfecf1
commit 9643e0fcdd
1 changed files with 1 additions and 1 deletions
--- a/selfdrive/ui/qt/onroad.cc
+++ b/selfdrive/ui/qt/onroad.cc
@ -164,7 +164,7 @@ void OnroadAlerts::paintEvent(QPaintEvent *event) {

  // draw background + gradient
  p.setPen(Qt::NoPen);
-  p.setCompositionMode(QPainter::CompositionMode_DestinationOver);
+  p.setCompositionMode(QPainter::CompositionMode_SourceOver);

  p.setBrush(QBrush(bg));
  p.drawRect(r);