A sprint burndown chart tracks the amount of remaining work in an agile sprint over time, plotted as a step (or line) series that descends as tasks are completed. A straight ideal-burndown guideline runs diagonally from the total committed scope on day one down to zero on the final day, giving the team an at-a-glance reference for whether they are ahead of or behind schedule. It is one of the most widely used project-management visualizations in software development, surfacing scope creep, stalled progress, and end-of-sprint risk early enough to act on.
# anyplot.ai
# burndown-sprint: Agile Sprint Burndown Chart
# Library: makie 0.22.10 | Julia 1.11.9
# Quality: 90/100 | Created: 2026-06-14
using CairoMakie
using Colors
using Random
Random.seed!(42)
# Theme tokens (Imprint palette — see prompts/default-style-guide.md)
const THEME = get(ENV, "ANYPLOT_THEME", "light")
const PAGE_BG = THEME == "light" ? colorant"#FAF8F1" : colorant"#1A1A17"
const ELEVATED_BG = THEME == "light" ? colorant"#FFFDF6" : colorant"#242420"
const INK = THEME == "light" ? colorant"#1A1A17" : colorant"#F0EFE8"
const INK_SOFT = THEME == "light" ? colorant"#4A4A44" : colorant"#B8B7B0"
const INK_MUTED = THEME == "light" ? colorant"#6B6A63" : colorant"#A8A79F"
const IMPRINT_PALETTE = [
colorant"#009E73", # 1 brand green (Imprint palette — always first series)
colorant"#C475FD", # 2 lavender
colorant"#4467A3", # 3 blue
colorant"#BD8233", # 4 ochre
colorant"#AE3030", # 5 matte red (semantic anchor: bad / scope risk)
colorant"#2ABCCD", # 6 cyan
colorant"#954477", # 7 rose
colorant"#99B314", # 8 lime
]
# Sprint data: 10 working days (Mon-Fri × 2 weeks), 40 initial story points.
# Calendar days: 0=Mon 1=Tue 2=Wed 3=Thu 4=Fri 5=Sat 6=Sun 7=Mon … 11=Fri
# Scope change (+8 pts) added on day 4 (Friday, week 1) — visible as upward jump.
days_raw = [0, 1, 2, 3, 4, 4, 7, 8, 9, 10, 11]
remaining_raw = [40, 36, 32, 28, 36, 32, 26, 19, 13, 7, 0]
# Build step-function from sprint data (pre-step: each value holds until the next x)
step_x = Float64[]
step_y = Float64[]
for i in eachindex(days_raw)
push!(step_x, Float64(days_raw[i]))
push!(step_y, Float64(remaining_raw[i]))
if i < length(days_raw)
push!(step_x, Float64(days_raw[i + 1]))
push!(step_y, Float64(remaining_raw[i]))
end
end
# Ideal burndown: straight diagonal from (0, 40) to (11, 0)
ideal_x = [0.0, 11.0]
ideal_y = [40.0, 0.0]
# Title — includes descriptive prefix so "burndown-sprint" reads unambiguously
title_str = "Sprint Burndown · burndown-sprint · julia · makie · anyplot.ai"
n_chars = length(title_str)
ratio = n_chars > 67 ? 67.0 / n_chars : 1.0
title_fs = max(14, round(Int, 20 * ratio))
# X-axis tick labels — weekday names for the 12 calendar days (0–11)
day_labels = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun",
"Mon", "Tue", "Wed", "Thu", "Fri"]
fig = Figure(
size = (1600, 900),
fontsize = 14,
backgroundcolor = PAGE_BG,
)
ax = Axis(
fig[1, 1];
title = title_str,
titlesize = title_fs,
titlecolor = INK,
xlabel = "Sprint Day",
ylabel = "Story Points Remaining",
xlabelsize = 14,
ylabelsize = 14,
xticklabelsize = 11,
yticklabelsize = 12,
xlabelcolor = INK,
ylabelcolor = INK,
xticklabelcolor = INK_SOFT,
yticklabelcolor = INK_SOFT,
xtickcolor = INK_SOFT,
ytickcolor = INK_SOFT,
backgroundcolor = PAGE_BG,
topspinevisible = false,
rightspinevisible = false,
leftspinecolor = INK_SOFT,
bottomspinecolor = INK_SOFT,
xgridvisible = false,
ygridcolor = RGBAf(Float32(INK.r), Float32(INK.g), Float32(INK.b), 0.15f0),
yminorgridvisible = false,
xminorgridvisible = false,
xticks = (0:11, day_labels),
)
# Weekend band — calendar days 5 (Sat) and 6 (Sun)
vspan!(ax, 4.5, 6.5; color = (INK_MUTED, 0.12))
# Ideal burndown reference (dashed, muted — below ideal means ahead of schedule)
lines!(ax, ideal_x, ideal_y;
color = INK_SOFT,
linewidth = 2.0,
linestyle = :dash,
label = "Ideal")
# Actual burndown step chart (Imprint brand green — first categorical series)
lines!(ax, step_x, step_y;
color = IMPRINT_PALETTE[1],
linewidth = 3.0,
label = "Actual")
# Scope change marker — dotted vertical at day 4 (matte red semantic anchor)
vlines!(ax, [4.0];
color = (IMPRINT_PALETTE[5], 0.75),
linewidth = 1.8,
linestyle = :dot)
# Scope change annotation
text!(ax, 4.15, 38.5;
text = "+8 pts",
color = IMPRINT_PALETTE[5],
fontsize = 12,
align = (:left, :center))
# Weekend label
text!(ax, 5.5, 43.5;
text = "Weekend",
color = INK_MUTED,
fontsize = 11,
align = (:center, :center))
xlims!(ax, -0.5, 11.8)
ylims!(ax, -2.0, 47.0)
# Legend — top-right, below/ahead of schedule reading clear from colors
axislegend(ax;
position = :rt,
framecolor = INK_SOFT,
backgroundcolor = ELEVATED_BG,
labelcolor = INK,
labelsize = 12,
patchsize = (25, 3),
padding = (8, 8, 6, 6))
save("plot-$(THEME).png", fig; px_per_unit = 2)
Part of Agile Sprint Burndown Chart on anyplot.ai.