Installation:

Put this code in your themes.yaml file. Check out the installation file for more info.

darkred:
# THEME MADE BY BROESIE
# Main colors that can be changed
  dark-primary-color: "#c66900"
  disabled-text-color: "#545454"
  divider-color: "rgba(255, 255, 255, 0.12)"
  light-primary-color: "#e06c6c"
  paper-card-background-color: "#1d1d1d"
  paper-grey-200: "#191919"
  paper-item-icon-color: "#d3d3d3"
  paper-listbox-background-color: "#202020"
# primary-background-color: "#c90037"
  primary-background-color: "#303030"
  primary-color: "#d32f2f"
  primary-text-color: "#cfcfcf"
  secondary-background-color: "#131313"
  sidebar-text_-_background: "#62717b" 
# Colors based on variables, see above
  label-badge-background-color: "var(--secondary-background-color)"
  label-badge-text-color: "var(--text-primary-color)"
  paper-card-header-color: "var(--paper-item-icon-color)"
  paper-grey-50: "var(--primary-text-color)"
  paper-item-icon-active-color: "var(--primary-color)"
  paper-item-icon_-_color: "var(--primary-text-color)"
  paper-listbox-color: "var(--primary-text-color)"
  paper-slider-active-color: "var(--primary-color)"
  paper-slider-knob-color: "var(--primary-color)"
  paper-slider-knob-start-color: "var(--primary-color)"
  paper-slider-pin-color: "var(--primary-color)"
  paper-slider-secondary-color: "var(--light-primary-color)"
  paper-toggle-button-checked-ink-color: "var(--dark-primary-color)"
  paper-toggle-button-checked-button-color: "var(--primary-color)"
  paper-toggle-button-checked-bar-color: "var(--light-primary-color)"
  paper-toggle-button-unchecked-bar-color: "var(--primary-text-color)"
  secondary-text-color: "var(--primary-color)"
  table-row-background-color: "var(--paper-card-background-color)"
  table-row-alternative-background-color: "var(--sidebar-text_-_background)"