[DOCS] Reduce figures size in Documentation (#247)

Author: ytdHuang

docs/src/tutorials/logo.md

@@ -83,7 +83,7 @@ wig = wigner(ψ, xvec, yvec, g = 2)
 Finally, we plot the Wigner function using the `heatmap` function from the `CairoMakie` package.
 
 ```@example logo
-fig = Figure(size = (500, 500), figure_padding = 0)
+fig = Figure(size = (250, 250), figure_padding = 0)
 ax = Axis(fig[1, 1])
 heatmap!(ax, xvec, yvec, wig', colormap = :RdBu, interpolate = true, rasterize = 1)
 hidespines!(ax)
@@ -120,7 +120,7 @@ And the Wigner function becomes more uniform:
 ```@example logo
 wig = wigner(sol.states[end], xvec, yvec, g = 2)
 
-fig = Figure(size = (500, 500), figure_padding = 0)
+fig = Figure(size = (250, 250), figure_padding = 0)
 ax = Axis(fig[1, 1])
 
 img_wig = heatmap!(ax, xvec, yvec, wig', colormap = :RdBu, interpolate = true, rasterize = 1)
@@ -197,7 +197,7 @@ img = set_color_julia.(X, Y, wig_normalized, α1, α2, α3, Ref(cmap1), Ref(cmap
 Finally, we plot the Wigner function with the custom colormap.
 
 ```@example logo
-fig = Figure(size = (500, 500), figure_padding = 0, backgroundcolor = :transparent)
+fig = Figure(size = (250, 250), figure_padding = 0, backgroundcolor = :transparent)
 ax = Axis(fig[1, 1], backgroundcolor = :transparent)
 image!(ax, img', rasterize = 1)
 hidespines!(ax)

docs/src/tutorials/lowrank.md

@@ -141,7 +141,7 @@ Plot the results
 m_me = real(mesol.expect[3, :]) / Nx / Ny
 m_lr = real(lrsol.expvals[3, :]) / Nx / Ny
 
-fig = Figure(size = (800, 400), fontsize = 15)
+fig = Figure(size = (500, 350), fontsize = 15)
 ax = Axis(fig[1, 1], xlabel = L"\gamma t", ylabel = L"M_{z}", xlabelsize = 20, ylabelsize = 20)
 lines!(ax, tl, m_lr, label = L"LR $[M=M(t)]$", linewidth = 2)
 lines!(ax, tl, m_me, label = "Fock", linewidth = 2, linestyle = :dash)

docs/src/users_guide/steadystate.md

@@ -103,7 +103,7 @@ sol_me = mesolve(H, ψ0, tlist, c_op_list, e_ops=e_ops, progress_bar=false)
 exp_me = real(sol_me.expect[1, :])
 
 # plot the results
-fig = Figure(size = (800, 400), fontsize = 15)
+fig = Figure(size = (500, 350), fontsize = 15)
 ax = Axis(fig[1, 1], 
     title = L"Decay of Fock state $|10\rangle$ in a thermal environment with $\langle n\rangle=2$",
     xlabel = "Time", 

docs/src/users_guide/time_evolution/solution.md

@@ -66,7 +66,7 @@ we can plot the resulting expectation values:
 using CairoMakie
 CairoMakie.enable_only_mime!(MIME"image/svg+xml"())
 
-fig = Figure()
+fig = Figure(size = (500, 350))
 ax = Axis(fig[1, 1], xlabel = L"t")
 lines!(ax, times, expt1, label = L"\langle 0 | \rho(t) | 0 \rangle")
 lines!(ax, times, expt2, label = L"\langle 1 | \rho(t) | 1 \rangle")