What graph led RED does mean?

Hello Jean Pierre,
thank you for the nice program.
I am using tt 2-1600 and your last version for ISS, but the graphic led is red on the right side.
Is this normal or what does it mean ?
vy73 Rudolf, DJ3DY
thank you for the nice program.
I am using tt 2-1600 and your last version for ISS, but the graphic led is red on the right side.
Is this normal or what does it mean ?
vy73 Rudolf, DJ3DY