message: removed unused ref
diff: */
  import { EMU, REGEX_HEX_COLOR, DEF_FONT_COLOR, ONEPT, SchemeColor, SCHEME_COLORS } from './core-enums'
  -import { IChartOpts, PresLayout, TextGlowProps, PresSlide, ShapeFillProps, Color, ShapeLineProps, Coord, ShadowProps } from './core-interfaces'
  +import { PresLayout, TextGlowProps, PresSlide, ShapeFillProps, Color, ShapeLineProps, Coord, ShadowProps } from './core-interfaces'
  /**
  * Translates any type of `x`/`y`/`w`/`h` prop to EMU
  