You've generated a chart, dropped it into the deck, and on the second read-through you spot it: "Q3 Revenue" should have been "Q3 Revneue". Or rather, the other way around. Or the axis says "Units" when it should say "Units (000s)." Or the labels are technically correct but too small to read from the back of the room.
The instinct is to reroll. Don't. Rerolling spins up a fresh AI render and gives you a brand-new visual variation — different texture, different shadows, different composition. You lose the chart you just approved. There's a faster, free path that keeps the image pixel-identical and only changes the text on top: Relabel.
Why Relabel exists separately from Reroll
Chartissimo renders charts in two layers. The artistic layer is the AI-generated image — that's the expensive part, takes ~10 seconds, and uses a credit. The label layer is text drawn on top of that image by Chartissimo, after the fact. Relabel only touches the second layer. No AI re-render, no waiting on the queue, no spending a credit. The artistic image stays exactly as it was.
Mental model: the AI rendered a beautiful canvas. Labels are stickers placed on top. Relabel peels the stickers off and puts new ones down. The canvas underneath never changes.
Where Relabel lives
Open the chart you want to edit from your Recent gallery. In the right-hand action sidebar, you'll see a Relabel button just above Brand Color and Reroll. Click it and a panel expands beneath.
If the button is greyed out, you're on a chart that wasn't generated with the relabel-capable pipeline (typically very early charts in your account). Reroll once and the new version will have Relabel enabled from then on.
What you can change without re-rendering
Everything in the Relabel panel can be changed without spending a credit:
- Title — tick the checkbox to add a chart title, or untick to remove it. Edit the text inline.
- Categories — toggle the per-bar/per-segment category names on or off.
- Values — toggle numeric value labels on or off.
- Percentages — for pie charts, show or hide the percentage on each slice.
- Gridlines — show or hide the background gridlines.
- Axis label — add a y-axis (or x-axis on bar charts) label, or change the existing one.
- Size — bump the label size from 1x up through 1.25, 1.5, 1.75, 2x, all the way to 3x. Useful when the chart's going on a poster, a TV, or a slide that'll be projected.
- Style — switch between Glass (frosted blur behind text), Glow (soft halo around text), and Solid (opaque pill background). Glass and Glow look more designed; Solid maximizes legibility against busy backgrounds.
Step 1: Open the Relabel panel
Click Relabel. The panel expands below the button. Whatever the chart already has — title, axis, label size, style — is pre-filled, so you're editing in place rather than starting from defaults.
Step 2: Make the edits
Type a new title. Tick "Values" to add value labels. Bump Size up to 1.5 if the original was hard to read. Switch from Glass to Solid if the chart's going on a slide background that fights with the frosted look.
Step 3: Click Update Labels
Click Update Labels at the bottom of the panel. The chart re-renders in a second or two. The artistic image is the same one you had — only the labels redraw. No credit consumed, no waiting on the AI queue.
The killer use cases
Typo on a chart that's already in the deck
Update Labels in 5 seconds. Re-export PNG. Replace in slide. Done — and the chart looks identical to the one you originally placed, so nothing else in the slide layout shifts.
Same chart, different audience
Internal audience gets the chart at default Size 1x. For the all-hands presentation projected to 200 people, bump Size to 2x and re-export. Same artistic chart, readable from row 30.
Switching label style for the slide background
Glass looks gorgeous on a contextual background but can wash out on white. Switch to Solid via Relabel — no need to regenerate the whole chart just because you moved it from a dark slide to a light one.
Adding context after the fact
Boss reviews the deck, asks for the y-axis to be labeled "USD millions" instead of being implicit. Tick the Axis checkbox in Relabel, type "USD millions," click Update Labels. 10 seconds, no credit.
When you do need to reroll instead
Relabel doesn't change the underlying numbers — if the data itself is wrong (a bar is the wrong height, a slice is the wrong size), you need to fix the data and regenerate. The labels are just text on top; they don't drive the chart geometry.
Likewise, if the artistic style itself is the problem (too dark, too busy, wrong vibe), Relabel can't help — that's what Reroll is for.
The bottom line
Every credit you don't spend on a typo fix is a credit you can spend on a real chart. Relabel exists for exactly this — text edits, size adjustments, style swaps that don't need the AI to do anything new. Relabel → make edits → Update Labels is a free, ~5-second workflow that should be your default whenever the only thing wrong with a chart is the words on top.