Stirling-PDF/src/main/resources/static/css/rainbow-mode.css

/* Rainbow Mode Styles */
body {
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 1) 0%,
    rgba(255, 154, 0, 1) 10%,
    rgba(208, 222, 33, 1) 20%,
    rgba(79, 220, 74, 1) 30%,
    rgba(63, 218, 216, 1) 40%,
    rgba(47, 201, 226, 1) 50%,
    rgba(28, 127, 238, 1) 60%,
    rgba(95, 21, 242, 1) 70%,
    rgba(186, 12, 248, 1) 80%,
    rgba(251, 7, 217, 1) 90%,
    rgba(255, 0, 0, 1) 100%
  );
  color: #fff !important;
  --body-background-color: 255, 255, 255;
  --base-font-color: 33, 37, 41;
}

.dark-card {
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 1) 0%,
    rgba(255, 154, 0, 1) 10%,
    rgba(208, 222, 33, 1) 20%,
    rgba(79, 220, 74, 1) 30%,
    rgba(63, 218, 216, 1) 40%,
    rgba(47, 201, 226, 1) 50%,
    rgba(28, 127, 238, 1) 60%,
    rgba(95, 21, 242, 1) 70%,
    rgba(186, 12, 248, 1) 80%,
    rgba(251, 7, 217, 1) 90%,
    rgba(255, 0, 0, 1) 100%
  ) !important;
  color: white !important;
}
.jumbotron {
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 1) 0%,
    rgba(255, 154, 0, 1) 10%,
    rgba(208, 222, 33, 1) 20%,
    rgba(79, 220, 74, 1) 30%,
    rgba(63, 218, 216, 1) 40%,
    rgba(47, 201, 226, 1) 50%,
    rgba(28, 127, 238, 1) 60%,
    rgba(95, 21, 242, 1) 70%,
    rgba(186, 12, 248, 1) 80%,
    rgba(251, 7, 217, 1) 90%,
    rgba(255, 0, 0, 1) 100%
  );
  color: #fff !important;
}

.list-group {
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 1) 0%,
    rgba(255, 154, 0, 1) 10%,
    rgba(208, 222, 33, 1) 20%,
    rgba(79, 220, 74, 1) 30%,
    rgba(63, 218, 216, 1) 40%,
    rgba(47, 201, 226, 1) 50%,
    rgba(28, 127, 238, 1) 60%,
    rgba(95, 21, 242, 1) 70%,
    rgba(186, 12, 248, 1) 80%,
    rgba(251, 7, 217, 1) 90%,
    rgba(255, 0, 0, 1) 100%
  ) !important;
  color: fff !important;
}
.list-group-item {
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 1) 0%,
    rgba(255, 154, 0, 1) 10%,
    rgba(208, 222, 33, 1) 20%,
    rgba(79, 220, 74, 1) 30%,
    rgba(63, 218, 216, 1) 40%,
    rgba(47, 201, 226, 1) 50%,
    rgba(28, 127, 238, 1) 60%,
    rgba(95, 21, 242, 1) 70%,
    rgba(186, 12, 248, 1) 80%,
    rgba(251, 7, 217, 1) 90%,
    rgba(255, 0, 0, 1) 100%
  ) !important;
  color: fff !important;
}
#support-section {
  background: linear-gradient(
    90deg,
    rgba(255, 0, 0, 1) 0%,
    rgba(255, 154, 0, 1) 10%,
    rgba(208, 222, 33, 1) 20%,
    rgba(79, 220, 74, 1) 30%,
    rgba(63, 218, 216, 1) 40%,
    rgba(47, 201, 226, 1) 50%,
    rgba(28, 127, 238, 1) 60%,
    rgba(95, 21, 242, 1) 70%,
    rgba(186, 12, 248, 1) 80%,
    rgba(251, 7, 217, 1) 90%,
    rgba(255, 0, 0, 1) 100%
  ) !important;
}

#pages-container-wrapper {
  --background-color: rgba(255, 255, 255, 0.046) !important;
  --scroll-bar-color: #4c4c4c !important;
  --scroll-bar-thumb: #d3d3d3 !important;
  --scroll-bar-thumb-hover: #ffffff !important;
}