public void Clear()
{
_screenBuffer.CursorLeft = 0;
_screenBuffer.CursorTop = 0;
_screenBuffer.Render(b =>
{
for (int index = 0; index < b.Length; index++)
{
b[index].AsciiChar = '\0';
b[index].Attributes = 0 << 4 | 7;
}
});
}