If you notice in your photo and mine the relevant symbols being used are all highlighted in white, the "spare" ones are highlighted in black.
Maybe that's the answer, if so you will then have to find out why/how it's illuminated.
 
If you notice in your photo and mine the relevant symbols being used are all highlighted in white, the "spare" ones are highlighted in black.
Maybe that's the answer, if so you will then have to find out why/how it's illuminated.
Ok thanks ,
 

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