Markdown card with template won't format correctly

yea, you’re probably right. Will make an extra sensor without the space and let you know.

Though I can already confirm the existing dark_sky_temp_color as posted above works just fine in the custom dark-sky-weather-card.js for coloring the main temp color.

I changed the card using:

      .temp {
        font-weight: ${tempFontWeight};
        font-size: ${tempFontSize};
        color: ${temp_color};
        position: absolute;
        right: ${tempRightPos};
        margin-top: ${tempTopMargin};
      }

and

  var temp_color = this.config.temp_color ? this._hass.states[this.config.temp_color].state : 'rgb(255, 165, 0)';

and since that too is used in html css, I would have expected same results.

Ultimately this must be it… no spaces, and quotes.