| Slider | Range | What it does |
|---|---|---|
| Brightness | −100 to +100 | Lighten or darken all colors. |
| Saturation | −100 to +100 | Boost or mute color intensity. −100 = full grayscale. |
| Contrast | −100 to +100 | Expand or compress the tonal range. Makes darks darker and lights lighter (or the reverse). |
| Hue | −180° to +180° | Rotate all colors around the color wheel. |
| Warmth | −100 to +100 | Push warmer (reds/yellows) or cooler (blues/greens). |
Palette Tools
Fine-tune your palette in one place: adjust color feel (brightness, warmth, etc.), reduce confetti by merging similar colors, switch thread brands.
Keyboard & modifiers
- Escape
- Cancel current palette operation (reverts preview)
- Enter
- Apply current palette operation
Basics
Palette Tools is your "palette surgery" panel — fast, reversible changes to your whole pattern's colors.
Open it from the palette panel (tools icon). It has four actions:
- Adjust Colors — shift the feel of all colors at once (brightness, saturation, contrast, hue, warmth).
- Simplify Colors — reduce color count by merging the least-used colors into the closest-looking ones.
- Switch Thread Brand — remap your whole palette to another thread brand (DMC, Anchor, Cosmo, Madeira, etc.).
- Remove unused colors — delete colors that have 0 stitches.
Adjust, Simplify, and Switch Brand open a sub-panel with live preview and Apply/Cancel. Remove Unused is one click — and still undoable.
Adjust Colors
Five sliders that shift your entire palette at once. Every slider previews in real time — drag and watch the pattern update.
All sliders default to 0 (no change). A Reset button appears when any slider is moved. Apply commits; Cancel (or Escape) reverts.
If you're using a thread brand (DMC, Anchor, etc.), adjustments stay inside that brand. Example: if you warm up a DMC palette, each color becomes the closest-looking DMC shade — you keep real thread codes. Custom (unbranded) colors are adjusted directly.
Pro tip: Warmth is great for cold-looking photo conversions. Try +15 to +25 for skin tones and wood.
Note: While adjusting, Stitchmate hides stitch symbols temporarily so you can judge color changes clearly. They come back when you Apply or Cancel.
Simplify Colors
A single slider that reduces the number of colors in your palette. It merges the least-used colors first, matching each one into the closest-looking color you're keeping.
- Slider range: 2 to your current color count.
- Default: 75% of your current count (e.g., 12 out of 16).
- Display: Shows "X / Y colors" as you drag.
How Simplify chooses merges:
- It starts with the colors you barely use.
- Each removed color is merged into the closest-looking color you're keeping.
- The pattern updates everywhere that removed color was used.
This is the fastest way to reduce confetti after photo conversion. Often you can cut 40 colors down to 20 with almost no visible loss — and the pattern becomes way nicer to stitch. If you're unsure where to aim, the how many colors to use guide has practical benchmarks by pattern type.
Pro tip: After simplifying, run Remove unused colors to clean up any stale palette slots. Then check ConfettiScope to see how much confetti remains.
Switch Thread Brand
Pick a target brand and every color in your palette is remapped to the closest-looking thread in that brand. You can also look up individual conversions in the DMC-Anchor conversion table.
Supported brands:
- DMC
- Anchor
- Cosmo
- Madeira
- J&P Coates
- Sullivans
Click a brand to preview the remap live on the canvas. Click Apply to commit.
Stitchmate remaps each color to the closest-looking thread in the target brand, using a color-matching method designed to match how the human eye sees differences. Even large palettes remap instantly.
Note: Two similar source colors can land on the same target thread if the target brand simply doesn't have enough shades in that range. That's normal — you can tweak individual colors afterward if needed.
Remove unused colors
One-click cleanup: removes every color from your palette that has zero stitches anywhere in the pattern.
The button label shows the count: "Remove unused colors (N)". If N is 0, the button is disabled — your palette is already clean.
Click it and all unused colors are removed in one Undo step. You'll see a confirmation message.
This typically comes up after:
- Simplify Colors — merged colors may leave behind empty palette slots.
- Manual editing — erasing all stitches of a color doesn't auto-remove it from the palette.
- Photo conversion — the converter may allocate colors that ended up unused.
How color matching works
Three of these tools rely on one idea: "what's the closest-looking color?"
Stitchmate tries to match colors the way humans see them, not just by raw RGB numbers. Under the hood, it uses the CIEDE2000 standard for perceptual color difference — the same method used in textile and paint manufacturing. For a deeper dive into why perceptual matching matters for cross stitch, see the color theory guide.
In practice, this means:
- A dark red and a dark brown that look similar on screen will be measured as close — even though their RGB values might be very different.
- Two blues that look obviously different will be measured as far apart — even if their hex codes are only a few digits away.
- Matches tend to feel more "visually right" than simple RGB comparisons.
Tips & gotchas
- Live preview for everything. Adjust, Simplify, and Switch Brand all show the result before you commit. Experiment freely.
- Enter to apply, Escape to cancel. Works across all sub-panels.
- Everything is undoable. Even Remove Unused Colors. Cmd/Ctrl+Z brings it all back.
- Adjust preserves your thread brand. Brightening a DMC palette gives you brighter DMC shades, not arbitrary hex values.
- Simplify merges by look, not by name. DMC 310 (Black) and DMC 3371 (Dark Brown-Black) are visually close and might merge — even though they're "different colors" in the catalog.
- Remove Unused is safe to run anytime. It only touches colors with zero stitches. Run it after any major palette change to keep things tidy.
- Chain operations. Common flow: Simplify → Remove Unused → Adjust → Switch Brand. Each step is undoable, so you can experiment freely.