Consider the figure
Somehow the \gamma_d labels are displayed as bold face, even though there is no other font or so specified.
The axis labels and the titles are created with latex strings during the creation of the axis, for example:
axis = Axis(fig[j, i],
title = L"α = %$(α) \sqrt{\kappa}",
ylabel = L"\kappa\,\mathrm{Im}(\beta)",
xlabel = L"\kappa\,\mathrm{Re}(\beta)"
)
while the annotations on the left side are latex strings, which are placed as labels, i.e.,
Label(fig[j, 1, TopLeft()], L"\gamma_D = %$(γ)\kappa", halign = :left)
If it helps, I can compile a working minimal example.