Add user color settings

tests/ui/settings_ui_test.py

@@ -0,0 +1,15 @@
+
+def test_change_color_palette(app):
+    app.run()
+    app.switch_page("pages/settings.py").run()
+
+    assert app.button[0].disabled == True
+    assert app.button[0].label == "Flames **(selected)**"
+
+    app.button[1].click().run()
+
+    assert app.button[0].disabled == False
+    assert app.button[0].label == "Flames"
+
+    assert app.button[1].disabled == True
+    assert app.button[1].label == "Water **(selected)**"