Displaying text values of ABMObservable in Agents.jl

Specific Domains Visualization
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1

I want to add display of text values and statistics in an interactive Agents model, but I can’t get it to work. As an example, if we start with the Schelling model from the Tutorial:

using Agents
using GLMakie

space = GridSpace((20, 20))

@agent struct Schelling(GridAgent{2})
    mood::Bool = false
    group::Int
end

function schelling_step!(agent, model)
    minhappy = model.min_to_be_happy
    count_neighbors_same_group = 0
    for neighbor in nearby_agents(agent, model)
        if agent.group == neighbor.group
            count_neighbors_same_group += 1
        end
    end
    if count_neighbors_same_group ≥ minhappy
        agent.mood = true
    else
        agent.mood = false
        move_agent_single!(agent, model)
    end
    return
end

properties = Dict(:min_to_be_happy => 3)

model = StandardABM(
    Schelling,
    space;
    agent_step! = schelling_step!, properties
)

for n in 1:300
    add_agent_single!(model; group = n < 300 / 2 ? 1 : 2)
end

using Statistics: mean
xpos(agent) = agent.pos[1]
adata = [(:mood, sum), (xpos, mean)]
adf, mdf = run!(model, 5; adata)

groupcolor(a) = a.group == 1 ? :blue : :orange
groupmarker(a) = a.group == 1 ? :circle : :rect

fig, ax, abmobs = abmplot(model; 
    agent_color = groupcolor, agent_marker = groupmarker, agent_size = 10,
    adata, add_controls = true)

I thought to add the following code to lift the current step number from abmobs.adf:

time_val = @lift($(abmobs.adf).time[end])
value_layout = fig[:, 2] = GridLayout(valign = :top)
value_layout[1, 1] = Label(fig, "step: $(to_value(time_val))")

But this only prints out the step statically and doesn’t update with the rest of the abmplot. Do I have to add a notify somewhere?