theme.park/css/theme-options/space-gray.css

:root {
  --main-bg-color: radial-gradient(ellipse at center, rgba(87, 108, 117, 1) 0%, rgba(37, 50, 55, 1) 100.2%) center center/cover no-repeat fixed;

  --modal-bg-color: radial-gradient(ellipse at top, rgba(87, 108, 117, 1) 0%, rgba(37, 50, 55, 1) 100.2%) center center/cover no-repeat fixed;
  --modal-header-color: radial-gradient(ellipse at top, rgba(87, 108, 117, 1) 0%, rgba(37, 50, 55, 1) 100.2%) center center/cover no-repeat fixed;
  --modal-footer-color: radial-gradient(ellipse at top, rgba(87, 108, 117, 1) 0%, rgba(37, 50, 55, 1) 100.2%) center center/cover no-repeat fixed;

  --drop-down-menu-bg: radial-gradient(ellipse at top, rgba(87, 108, 117, 1) 0%, rgba(37, 50, 55, 1) 100.2%) center center/cover no-repeat fixed;

  --button-color: #607D8B;
  --button-color-hover: #81a6b7;
  --button-text: #eee;
  --button-text-hover: #fff;

  --accent-color: 129, 166, 183;
  --accent-color-hover: rgb(var(--accent-color),.8);
  --link-color: #81a6b7;
  --link-color-hover: #9adfff;
  --label-text-color: #fff;

  --text:#bbb;
  --text-hover: #fff;
  --text-muted: #999;

  /*Specials*/
  --arr-queue-color: #81a6b7; /* Servarr apps + Bazarr*/
  --plex-poster-unwatched: #70aeca;
  --petio-spinner: invert(50%) sepia(31%) saturate(341%) hue-rotate(155deg) brightness(88%) contrast(85%);/* Made with https://codepen.io/jsm91/embed/ZEEawyZ */
  --gitea-color-primary-dark-4: 129, 166, 183;
}