initial commit, nothing much here

grid/ui/sphere_widget.py

@@ -0,0 +1,15 @@
+from PySide6.QtCore import Qt
+from PySide6.QtGui import QPaintEvent, QPainter, QPalette
+from PySide6.QtWidgets import QApplication, QVBoxLayout, QWidget
+
+class SphereWidget(QWidget):
+
+    def __init__(self) -> None:
+        super().__init__()
+
+    def paintEvent(self, event: QPaintEvent) -> None:
+        with QPainter(self) as painter:
+            painter.setRenderHint(QPainter.Antialiasing)
+            painter.setBrush(Qt.red)
+            painter.drawEllipse(0, 0, self.width(), self.height())
+        return super().paintEvent(event)