I am trying to set the individual colors of each line in a QtreeWidget, I have tried setting them manually as I fill the treeView with QBrush(col, QColor(R, G, B, a)) and without the alpha value. I have also tried filling out the treeView in PyQT6 Designer, and it looks fine in the designer, but when I export the .ui file and import it, the colors don’t show up (I have even checked the .ui XML data, and I can see the color property in the file), is this an issue with QtreeWidget, or am I doing something wrong?

import sys
from PyQt6.uic import *
from PyQt6.QtCore import *
from PyQt6.QtWidgets import *
from PyQt6.QtGui import *

class MyApp(QMainWindow):
    def __init__(self):
        super(MyApp, self).__init__()
        loadUi("Test.ui", self)

if __name__ == '__main__':
    app = QApplication(sys.argv)#[])
    window = MyApp()
    window.show()
    app.exec()

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>640</width>
    <height>480</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <layout class="QHBoxLayout" name="horizontalLayout">
    <item>
     <widget class="QTreeWidget" name="treeWidget">
      <column>
       <property name="text">
        <string>1</string>
       </property>
      </column>
      <item>
       <property name="text">
        <string>Test1</string>
       </property>
       <property name="foreground">
        <brush brushstyle="NoBrush">
         <color alpha="255">
          <red>255</red>
          <green>0</green>
          <blue>0</blue>
         </color>
        </brush>
       </property>
      </item>
      <item>
       <property name="text">
        <string>Test2</string>
       </property>
       <property name="foreground">
        <brush brushstyle="NoBrush">
         <color alpha="255">
          <red>0</red>
          <green>170</green>
          <blue>0</blue>
         </color>
        </brush>
       </property>
      </item>
      <item>
       <property name="text">
        <string>Test3</string>
       </property>
       <property name="foreground">
        <brush brushstyle="NoBrush">
         <color alpha="255">
          <red>0</red>
          <green>85</green>
          <blue>255</blue>
         </color>
        </brush>
       </property>
      </item>
     </widget>
    </item>
   </layout>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>640</width>
     <height>22</height>
    </rect>
   </property>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
 </widget>
 <resources/>
 <connections/>
</ui>