In place of T, display a + character in positions 4 and 6
else if (character == 'c') character = 'C'; // C needs to be uppercase
else if (character == 'J') character = 'j'; // same
else if (character == 'v' || character == 'V' || character == 'U' || character == 'W' || character == 'w') character = 'u'; // bottom segment duplicated, so show in top half
+ else if (character == 't' || character == 'T') character = '+'; // avoid confusion with uppercase E
} else {
if (character == 'u') character = 'v'; // we can use the bottom segment; move to lower half
else if (character == 'j') character = 'J'; // same but just display a normal J