I would like to change the color of the "Cash payment" button

[minisuper]

I would like to change the color of the  "Cash payment" button .  Is this possible.  Same with "table button" .

Also cannot seem to use customer to assign sales to.  I have named tables with customer names as a work around.  Would be nice if I could just choose customer from a list to assign a sales "tab" to   instead of to a table.

[minisuper]

further clarification,  If i choose to sell a product and do not assign it to a table. I would like both  the "select table" and the "cash payment" to appear in a different color.  Thank You.