To change colors in RepairBuddy WordPress Plugin please add following CSS into wp-admin >> Appearance >> Customize >> Additional CSS
And change background colors to your desired colors #fd6742 and #063e70
.wc_rb_mb_head h2,
.wcrbfd .wcrb_dashboard_section .wcrb_dan_item h3,
.wcCrJobHistoryHideShowBtn:hover,
.wcCrJobHistoryHideShowBtn:focus,
.wcrbfd.computer-repair li.external-title a h2,
.wcrbfd.computer-repair li.tabs-title a h2,
.wcrb_widget_title h2,
h2.wc_service_booking_heading,
.wcrb_service_thumb_price,
.priceRangeWCRB,
.wcrb_dev_service_head h3 a,
.wcrb_close {
color: #FFF;
}
.wc_rb_mb_head,
.wcrbfd .wcrb_dashboard_section .wcrb_dan_item h3,
.wcCrJobHistoryHideShowBtn:hover,
.wcCrJobHistoryHideShowBtn:focus,
ul.dtypes_list li a.selected,
ul.manufacture_list li a.selected,
.wcrbfd.computer-repair li.external-title > a:hover,
.wcrbfd.computer-repair .tabs-title > a:hover,
.wcrbfd.computer-repair .tabs-title > a:focus,
.wcrbfd.computer-repair .tabs-title > a[aria-selected='true'],
.wcrb_widget_content .accordion-title,
.wcrb_dev_service_head .imageWrap,
.wcrb_close {
background-color: #fd6742;
}
.wcrb_widget_title h2,
.wcrb_widget_content .accordion-title:hover,
.wcrbfd .thebluebg,
.wcrb_widget_content .is-active>.accordion-title,
h2.wc_service_booking_heading,
.wcrb_service_thumb_price,
.priceRangeWCRB,
.wcrb_dev_service_head,
.wcrb_close:hover {
background-color: #063e70;
}
ul.dtypes_list li,
ul.manufacture_list li,
.wcrbfd .wcrb_dashboard_section .wcrb_dan_item,
.wcrbfd .wcrb_widget,
.wcrbfd .the-brand-logo,
.jobAttachments,
.wcCrShowHideHistory,
.wc_rb_mb_body input[type=email],
.wc_rb_mb_body textarea,
.wc_rb_mb_body input[type=text],
.wcrb_widget_wrap,
.wcrbfd .thewhitebg,
.wcrb_widget_content .accordion-title,
.wcrb_dev_service_wrap {
background-color: #fff;
}