Normal: C + 1 --- toggle transparency   If you installed GUICVM 1.4 or higher, You can check key bindings by GUICVM. Press F4, or move mouse cursor left top of window & click appered icon. then click swimsuit icon.   Caution: 1.  If you don't want to use GUICVM, Please disable or delete "sub-gui-text.ini". 2.  This mod works with "Level 2", "Level 3", "Level 4", "Level 5"