getCanvasColors = () => {
  let colors = {};
  colors["hover_select"] = getComputedStyle(document.documentElement).getPropertyValue('--hover-and-sel');
  colors["fill"] = getComputedStyle(document.documentElement).getPropertyValue('--fill');
  colors["mini_fill"] = getComputedStyle(document.documentElement).getPropertyValue('--mini-map');
  colors["mini_stroke"] = getComputedStyle(document.documentElement).getPropertyValue('--mini-map-stroke');
  colors["stroke"] = getComputedStyle(document.documentElement).getPropertyValue('--stroke');
  colors["stroke_alt"] = getComputedStyle(document.documentElement).getPropertyValue('--secondary-stroke');
  colors["input_text"] = getComputedStyle(document.documentElement).getPropertyValue('--input-text');
  colors["color_wire_draw"] = getComputedStyle(document.documentElement).getPropertyValue('--wire-draw');
  colors["color_wire_con"] = getComputedStyle(document.documentElement).getPropertyValue('--wire-cnt');
  colors["color_wire_pow"] = getComputedStyle(document.documentElement).getPropertyValue('--wire-pow');
  colors["color_wire_sel"] = getComputedStyle(document.documentElement).getPropertyValue('--wire-sel');
  colors["color_wire_lose"] = getComputedStyle(document.documentElement).getPropertyValue('--wire-lose');
  colors["color_wire"] = getComputedStyle(document.documentElement).getPropertyValue('--wire-norm');
  colors["text"] = getComputedStyle(document.documentElement).getPropertyValue('--text');
  colors["node"] = getComputedStyle(document.documentElement).getPropertyValue('--node');
  colors["node_norm"] = getComputedStyle(document.documentElement).getPropertyValue('--node-norm');
  colors["splitter"] = getComputedStyle(document.documentElement).getPropertyValue('--splitter');
  colors["out_rect"] = getComputedStyle(document.documentElement).getPropertyValue('--output-rect');
  colors["canvas_stroke"] = getComputedStyle(document.documentElement).getPropertyValue('--canvas-stroke');
  colors["canvas_fill"] = getComputedStyle(document.documentElement).getPropertyValue('--canvas-fill');
  return colors;
}
Extracts canvas theme colors from CSS-Variables and returns a JSON Object
@returns {object}