package manager update + UI built-in extended char detection

sys/apis/ui/components/Checkbox.lua

@@ -7,9 +7,9 @@ UI.Checkbox = class(UI.Window)
 UI.Checkbox.defaults = {
 	UIElement = 'Checkbox',
 	nochoice = 'Select',
-	checkedIndicator = 'X',
-	leftMarker = '[',
-	rightMarker = ']',
+	checkedIndicator = UI.extChars and '\4' or 'X',
+	leftMarker = UI.extChars and '\124' or '[',
+	rightMarker = UI.extChars and '\124' or ']',
 	value = false,
 	textColor = colors.white,
 	backgroundColor = colors.black,