Set transparency on pokemon icons

CHANGELOG.md

@@ -18,6 +18,7 @@ The **"Breaking Changes"** listed below are changes that have been made in the d
 - Hovering on border metatiles with the mouse will now display their information in the bottom bar.
 - The last-used directory is now preserved in import/export file dialogs.
 - Encounter editing has been slightly modified in favor of a more performant ui.
+- Pokémon icons in the encounter editor have their transparency set.
 
 ### Fixed
 - Fix the Region Map Editor being opened by the Shortcuts Editor.

src/ui/encountertabledelegates.cpp

@@ -16,7 +16,9 @@ void SpeciesComboDelegate::paint(QPainter *painter, const QStyleOptionViewItem &
 
     QPixmap pm;
     if (!QPixmapCache::find(species, &pm)) {
-        pm.load(this->project->speciesToIconPath.value(species));
+        QImage img(this->project->speciesToIconPath.value(species));
+        img.setColor(0, qRgba(0, 0, 0, 0));
+        pm = QPixmap::fromImage(img);
         QPixmapCache::insert(species, pm);
     }
     QPixmap monIcon = pm.copy(0, 0, 32, 32);