Installation:

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

darkcyan:
# THEME MADE BY BROESIE
# Main colors that can be changed
  primary-color: "#00bcd4"
  disabled-text-color: "#545454"
  divider-color: "rgba(255, 255, 255, 0.12)"
  paper-card-background-color: "#4e4e4e"
  paper-grey-200: "#191919"
  paper-item-icon-color: "#d3d3d3"
  paper-listbox-background-color: "#202020"
  paper-listbox-color: "#FFFFFF"      
  primary-background-color: "#303030"
  primary-text-color: "#cfcfcf"      
  secondary-background-color: "#2b2b2b"
  secondary-text-color: "#04a7bc"
# 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-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)"
  table-row-background-color: "var(--paper-card-background-color)"
  table-row-alternative-background-color: "var(--sidebar-text_-_background)"