bit of cleanup

components/sections/catmullmoulding/content.en-GB.md

@@ -8,6 +8,6 @@ Using Catmull-Rom curves, we need virtually no computation, but even though we e
 
 In the following graphic, on the left we see three points that we want to draw a Catmull-Rom curve through (which we can move around freely, by the way), with in the second panel some of the "interesting" Catmull-Rom information: in black there's the baseline start--end, which will act as tangent orientation for the curve at point p2. We also see a virtual point p0 and p4, which are initially just point p2 reflected over the baseline. However, by using the up and down cursor key we can offset these points parallel to the baseline. Why would we want to do this? Because the line p0--p2 acts as departure tangent at p1, and the line p2--p4 acts as arrival tangent at p3. Play around with the graphic a bit to get an idea of what all of that meant:
 
-<Graphic preset="threepanel" title="Catmull-Rom curve fitting" setup={this.setup} draw={this.draw} onKeyDown={this.props.onKeyDown}/>
+<Graphic title="Catmull-Rom curve fitting" setup={this.setup} draw={this.draw} onKeyDown={this.props.onKeyDown}/>
 
 As should be obvious by now, Catmull-Rom curves are great for "fitting a curvature to some points", but if we want to convert that curve to Bézier form we're going to end up with a lot of separate (but visually joined) Bézier curves. Depending on what we want to do, that'll be either unnecessary work, or exactly what we want: which it is depends entirely on you.