am/modules/themes/themes.scss

@import '~elements-sk/themes/themes';

.body-sk.darkmode {
  --primary: var(--light-blue);
  --primary-variant: var(--light-blue-200);
  --on-primary-variant: var(--black);
  --dark-grayish-blue: #8899A6;
  --dark-desaturated-blue: #192734;

  --active: var(--red-300);
  --inactive: var(--dark-grayish-blue);
  --silenced: var(--green-300);
  --assigned: var(--orange-300);
  --selected: var(--dark-desaturated-blue);

  --minimized: var(--dark-desaturated-blue);
  --comments: var(--dark-desaturated-blue);
  --icons: var(--green-300);
  --disabled: var(--grey-700);
}

.body-sk {
  --primary: var(--blue-800);
  --primary-variant: var(--light-blue-600);
  --secondary: var(--green-500);
  --very-dark-gray: #4F4F4F;

  --active: var(--red);
  --inactive: var(--very-dark-gray);
  --silenced: var(--green);
  --assigned: var(--orange);
  --assigned-person: var(--light-orange);
  --selected: var(--dark-white);

  --minimized: var(--dark-white);
  --comments: var(--dark-white);
  --icons: var(--green);

  input, textarea {
    border: solid 1px var(--on-surface);
    color: solid 1px var(--on-surface);
    background: solid 1px var(--surface);
  }

  a {
    color: var(--primary);
  }
}

/*
   The following styles are for scrollbars. There are some non-standard looking
   styles because it is 2020 and there's still no standard way to style
   scrollbars on a web page.

   https://caniuse.com/#feat=css-scrollbar

   There is currently an editor's draft for styling scrollbars:
   https://drafts.csswg.org/css-scrollbars-1/, but it is only supported by
   FireFox. So set that first.
*/

* {
  scrollbar-color: var(--surface-1dp) var(--background);
}

/* Now set the non-standard styles. Unfortunately the way webpack/cssmin is
   configured currently it will strip the following rules from the output so we
   turn the autoprefixer off.
*/

/* autoprefixer: off */

/* Turn on a 13x13 scrollbar */
::-webkit-scrollbar {
  width: 13px;
  height: 13px;
}

/* Turn off single button up on top and down on bottom */
::-webkit-scrollbar-button:start:decrement,
::-webkit-scrollbar-button:end:increment,
::-webkit-scrollbar-button:vertical:start:increment,
::-webkit-scrollbar-button:vertical:end:decrement {
  display: none;
}

/* Track below and above */
::-webkit-scrollbar-track-piece {
  background-color: var(--background);
  border: solid 1px var(--surface-2dp);
}

/* The thumb itself */
::-webkit-scrollbar-thumb {
  border: solid 1px var(--on-surface);
  background: var(--surface-1dp);
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  background: var(--surface);
}