For Noordlease I have been asked to add a placeholder to the header search bar and change the colors. Below is the CSS styling codes for changing the input placeholder, search icon and close icon.
.pwr--dark .pwr-header-search, .pwr-header--dark-on-scroll.scroll .pwr-header-search{background-color:rgb(205, 220, 211) !important; }
#search4_layer{fill: black !important;}
.pwr-header-search__close-icon:after, .pwr-header-search__close-icon:before{background-color:#000 !important;}
/* Search bar input placeholder color */
#pwr-header-search__input::placeholder {color: #000 !important; opacity: 1 !important;}