vault-frontend/src/styles/themes/_horizon.scss

// palette (use inside)

$_yellow: #ffd60f;
$_dark_blue: #592071;
$_blue: #582cd0;
$_green: #00d2b9;
$_wisegreen: #007962;
$_olive: #6cb337;
$_red: #ff3344;
$_orange: #ff7549;
$_lightgreen: lighten(adjust_hue(#007962, -30deg), 10%);
$_soft_blue: #7693d6;

$_cold: #1c1e26;
$_accent: #e95678;
$_mandarine: #f09483;
$_lemon: #fab795;
$_ocean: #25b0bc;

@mixin apply {
  :root.theme-horizon {
    // main definitions (move to --vars)
    --color_primary: #{$_accent};
    --color_danger: #{$_red};
    --color_online: #{$_ocean};
    --color_offline: #{$_mandarine};
    --color_link: #{$_ocean};
    --color_like: #{$_lemon};
    --color_flow: #{$_red};
    --color_lab: #{$_blue};
    --color_boris: #{$_wisegreen};

    // gradients (move to --vars)
    --danger_gradient: linear-gradient(165deg, #{$_orange} -50%, #{$_red} 150%);
    --info_gradient: linear-gradient(170deg, #{$_ocean}, #{$_soft_blue});

    --warning_gradient: linear-gradient(
      165deg,
      #{$_yellow} -50%,
      #{$_red} 150%
    );

    --primary_gradient: linear-gradient(
      170deg,
      #{$_mandarine} -150%,
      #{$_accent} 100%
    );

    --magic_gradient: linear-gradient(
      260deg,
      #{$_accent} -50%,
      #{$_orange} 150%
    );

    --global_loader_gradient: linear-gradient(
      90deg,
      #{$_lemon},
      #{$_accent},
      #{$_mandarine}
    );
    --flow_gradient: var(--primary_gradient);
    --lab_gradient: var(--info_gradient);

    // backgrounds (move to --vars)
    --content_bg: #{$_cold};
    --content_bg_dark: #{darken($_cold, 2%)};
    --content_bg_darker: #{darken($_cold, 4%)};
    --content_bg_light: #{lighten($_cold, 2%)};
    --content_bg_lighter: #{lighten($_cold, 4%)};
    --content_bg_lightest: #{lighten($_cold, 6%)};

    --content_bg_success: #{transparentize($_accent, 0.7)};
    --content_bg_info: #{transparentize($_lemon, 0.7)};
    --content_bg_danger: #{transparentize($_red, 0.5)};
    --content_bg_backdrop: #{transparentize($_cold, 0.2)};

    // white shades (move to --vars)
    --white: white;
    --gray_25: #{transparentize(white, 0.25)};
    --gray_50: #{transparentize(white, 0.5)};
    --gray_75: #{transparentize(white, 0.75)};
    --gray_90: #{transparentize(white, 0.95)};

    // page background
    --page-background: 50% 50% / cover no-repeat url('/images/horizon_bg.svg') #{darken(
        $_cold,
        4%
      )} fixed;
    --page-background-top: none;
    --boris-background: linear-gradient(#{$_ocean} -200%, transparent 50%);
  }
}