Unable to change legend linewidth and markersize with theme

[stelmo]

Bug description

The linewidth and markersize attributes from Legend in a theme are not transfered to a plot. Something is going wrong here it seems (from Makie slack with @jkrumbiegel):

AlgebraOfGraphics.jl/src/guides/legend.jl

Lines 366 to 372 in 461c975

	function _get(plottype, scale_args, attributes, key, fallback)
	return get(scale_args, key) do
	get(attributes, key) do
	to_value(get(Makie.default_theme(nothing, plottype), key, fallback))
	end
	end
	end

Steps to reproduce

Here is a MWE:

using CairoMakie, AlgebraOfGraphics, DataFrames

update_theme!(Legend = (linewidth=20,markersize=20,), Lines = (linewidth=20,), Scatter = (markersize=20,),)
df = DataFrame(X = [1,2,3,1,2,3], Y = [1,2,3,1,2,3], Grp = ["A", "A", "A", "B", "B", "B"])

data(df) * mapping(:X, :Y, color = :Grp) * visual(Lines) |> draw
data(df) * mapping(:X, :Y, color = :Grp) * visual(Scatter) |> draw

Images

In both these images, the legend marker size and line width are too small.

Version info

• Makie v0.24.9
• CairoMakie v0.15.9
• AlgebraOfGraphics v0.12.4
• Julia Version 1.12.3