Howdy, I would like some assistance with styling

Howdy,

I would like some assistance with styling the calendar on the page below.

1) Make day of the week bar "S M T W TH F S" background same as page colour #058789.

2) If possible get rid of the dropdown arrow to the right of "Rolfing Structural Integration Session With Brett 1 hour 20 minutes @ $ CAD110.00" so that the whole text is showing without the dropdown: "I would like to schedule...
Rolfing Structural Integration Session With Brett
1 hour 20 minutes @ $ CAD110.00"

3) Change the colour of the available days (currently black) to white. And the non available days (currently grey) to black.

https://somaticintegrationdbaislandrolfing.acuityscheduling.com/schedule.php

Thanks in advance.

Cheers,
Casper