Colors of Buttons (dropdowns)

hey,

i searched now for many ours and changed every color i found in this colorcode.

I need your help.

Where i can edit this type of color?

1/ Cart Buttons (Blue Textarea-backgrounds with white text in it)

2/ Shopping Cart Quantity Textarea

3/ Variation Buttons?

Thanks.

P.S. I don't know why I can't find this