A window made from Box Drawing and Block Elements characters

import PyBearLibTerminal as T

def draw_window(x, y, w, h):
    # Transflucent background
    T.color('#C0A0A0A0')
    T.put(x,     y,     0x2597) # Corners
    T.put(x+w-1, y,     0x2596)
    T.put(x+w-1, y+h-1, 0x2598)
    T.put(x,     y+h-1, 0x259D)
    for i in range(x+1, x+w-1): # Horisontal borders
        T.put(i, y,     0x2584)
        T.put(i, y+h-1, 0x2580)
    for i in range(y+1, y+h-1): # Vertical borders
        T.put(x,     i, 0x2590)
        T.put(x+w-1, i, 0x258C)
    for i in range(x+1, x+w-1): # Fill
        for j in range(y+1, y+h-1):
            T.put(i, j, 0x2588)
    # Thin, solid border
    T.color('white')
    T.put(x,     y,     0x250C) # Corners
    T.put(x+w-1, y,     0x2510)
    T.put(x+w-1, y+h-1, 0x2518)
    T.put(x,     y+h-1, 0x2514)
    for i in range(x+1, x+w-1): # Horisontal borders
        T.put(i, y,     0x2500)
        T.put(i, y+h-1, 0x2500)
    for i in range(y+1, y+h-1): # Vertical borders
        T.put(x,     i, 0x2502)
        T.put(x+w-1, i, 0x2502)

T.open()
T.set('font: ../ttf-fonts/consola.ttf, size=16')
T.set('input.filter=[keyboard, system]') # Disable mouse to make read() behave like getch()
T.set('window.size=28x10')
T.set('terminal.encoding=utf8')
T.composition(True) # Simpler than layers

# Checkered background
for x in range(0, 12):
    for y in range(0, 8):
        T.color('darkest green' if ((x+y) % 2 == 0) else 'darkest red')
        T.put(x*2 + 2, y + 1, 0x2588)
        T.put(x*2 + 3, y + 1, 0x2588)

draw_window(5, 2, 18, 6)
T.printf(5+2, 2+1, '[color=white]Hello, window!')

T.refresh()
T.read()
T.close()