message: Choose different outline color for a defined brush opposed to an empty one
diff: @@ -41,8 +41,10 @@ import {
  Pixel, Framebuf, FramebufUIState
  } from '../redux/types'
  +const brushOutlineSelectingColor = 'rgba(128, 255, 128, 0.5)';
  +
  const brushOverlayStyleBase: CSSProperties = {
  - outlineColor: 'rgba(128, 255, 128, 0.5)',
  + outlineColor: 'rgba(255, 255, 255, 0.5)',
  outlineStyle: 'solid',
  outlineWidth: 0.5,
  backgroundColor: 'rgba(255,255,255,0)',
  @@ -65,13 +67,14 @@ class BrushSelectOverlay extends Component<BrushSelectOverlayProps> {
  charPos={this.props.charPos}
  framebufWidth={this.props.framebufWidth}
  framebufHeight={this.props.framebufHeight}
  - color='rgba(128, 255, 128, 0.5)'
  + color={brushOutlineSelectingColor}
  />
  )
  }
  const { min, max } = utils.sortRegion(this.props.brushRegion)
  const s: CSSProperties = {
  ...brushOverlayStyleBase,
  + outlineColor: brushOutlineSelectingColor,
  position: 'absolute',
  left: min.col*8,
  top: min.row*8,
  