Hi,

I’m trying to define a new recipe in Makie that is essentially an enhanced contour plot, and I would like any kwargs that get passed in the call for my new recipe to automatically get passed-through to my call to contour!. But it’s not clear to me how to do this.

More information: I’m trying to make new plot recipe that will use a kernel density estimate to plot 2D contours of the density of some points. I want `kdecontour(x, y; kwargs...)`

to become a `contour`

plot that plots density contours, and passes the options in `kwargs`

onward to `contour`

. My recipe looks like

```
@recipe(KDEContour, x, y) do scene
Theme(
levels = [0.1, 0.5],
xexpansionfactor = 0.1,
yexpansionfactor = 0.1,
xgridsize=128,
ygridsize=129
)
end
```

```
function Makie.plot!(kdecontour::KDEContour)
x = kdecontour.x[]
y = kdecontour.y[]
pts = vcat(x', y')
k = KDE(pts)
p_kde_pts = [pdf(k, pts[:,i]) for i in axes(pts, 2)]
p_levels = [quantile(p_kde_pts, l) for l in kdecontour.levels[]]
dx = maximum(x)-minimum(x)
dy = maximum(y)-minimum(y)
fx = kdecontour.xexpansionfactor[]/2
xgrid = range(minimum(x)-fx*dx, maximum(x)+fx*dx, length=kdecontour.xgridsize[])
fy = kdecontour.yexpansionfactor[]/2
ygrid = range(minimum(y)-fy*dy, maximum(y)+fy*dy, length=kdecontour.ygridsize[])
z = [pdf(k, [x, y]) for x in xgrid, y in ygrid]
# I want any additional kwargs to get passed along to this invocation of `contour!`
contour!(kdecontour, xgrid, ygrid, z; levels=p_levels)
end
```

(Nevermind that I’m ignoring all the `Observable`

machinery for now—I’ll put that in later.). How do I do this?

Will