Method _updateTrackUINonRange

src/material/slider/slider.ts:849–863

(source: _MatSliderThumb)

  }

  private _updateTrackUINonRange(source: _MatSliderThumb): void {
    this._isRtl()
      ? this._setTrackActiveStyles({
          left: 'auto',
          right: '0px',
          transformOrigin: 'right',
          transform: `scaleX(${1 - source.fillPercentage})`,
        })
      : this._setTrackActiveStyles({
          left: '0px',
          right: 'auto',
          transformOrigin: 'left',
          transform: `scaleX(${source.fillPercentage})`,
        });
  }

  // Tick mark update conditions
  //