Tanning beds makes your skin darker than the sun can, so yeah Tracy is that dark from tanning bed.
What? You do realise that what you've stated here seems utterly illogical?
I agree that her skin colour is simply darker because she tans herself more, but sunbeds just recreate the UV rays which the sun has literally multi-millions x the amount & power of.
The sun is unquestionably, unequivocally more powerful than a light bulb, or the 20 or so UV strips found in a sunbed.
If either was going to have a more pronounced effect, it would absolutely categorically be the more powerful of the two options, which means it would be the sun, not the infinitely weaker sunbed.
However, your skin only has a certain pigment range & can only reach a shade of tan appropriate to your respective skin type/colour. Regardless of whether it comes directly from the sun, or recreated by a sun bed, once you've reached the maximum darkness that your skin can attain, it will not get any darker, regardless of how much longer you spend in the sun or sunbed.
The only thing that will happen, if you spend longer past the point of maximum pigmentation, is that your skin will age more quickly.
It will not & cannot ever exceed its maximum pigmentation & both options, sunbed & the sun, will reach that same point eventually.
Saturation point.
What you're suggesting is like saying that you have 2x 1 litre jugs, but filling them up via different methods allows 1 of them to hold more than a litre. It doesn't. They both hold 1 litre, end of.