The colour of the active tab text can be changed in this section of CSS:

/*Active tab text colour*/

.ds-advent-5 .et_pb_tab_active a {
    color: #FFCE06 !important;
}

The colour of the pagination links can be changed in this section of CSS:

.ds-advent-5-content .pagination a {
    background: transparent;
    color: #FFCE06 !important;
    border: none;
}