To change the ColorDrop threshold in Procreate, drag your active color from the top-right dot into a shape and keep your finger or Pencil on the screen after the fill appears. A blue bar shows up along the top of the canvas with a percentage. Slide left to fill less, slide right to fill more, then lift to commit. Procreate remembers that value for your next ColorDrop, so it's worth checking whenever a fill behaves differently than expected.

What ColorDrop Threshold Actually Does

ColorDrop is Procreate's bucket-style fill. You drag the active color into an area, and Procreate floods that area until it hits an edge. The threshold controls how tolerant that edge detection is.

• Low threshold: the fill stays tight. It only covers pixels very close to the color you dropped onto, so it can leave halos or speckled gaps around anti-aliased lines.
• High threshold: the fill spreads further. It pushes into softer edges and can leak across a line, or flood the entire layer.

If you've ever worked with tolerance on a magic wand, a keyer's similarity slider, or a fill tool in Photoshop, the idea is the same. You're deciding how different a neighboring pixel can be before the fill stops.

This matters in production because the fills you make in Procreate often end up as flat color layers, animation cels, or texture elements that you bring into After Effects, Nuke, or Blender. A sloppy fill edge shows up later as fringing or a visible matte line.

Step-by-Step: Changing the Threshold

1. Select your color. Pick the color you want in the Colors panel. It appears in the dot at the top right of the canvas.
2. Drag the color into the shape. Drag from the dot onto the area you want to fill. The color floods in.
3. Don't lift. Keep contact with the screen after the fill appears. Hold still for a moment.
4. Wait for the blue bar. A thin blue bar appears along the top of the canvas with a percentage readout. This is your threshold.
5. Slide left or right. Moving left lowers the percentage and fills less area. Moving right raises it and fills more.
6. Release to commit. Lifting your finger or Pencil applies the fill at that threshold.

A few details trip people up:

• You don't need to touch the slider itself. Your finger can be anywhere on the canvas while you slide.
• You don't need two hands. Using one finger or one Pencil is more reliable, because setting down a second touch can break the continuous contact the adjustment relies on.
• If the percentage never appears, the adjustment mode probably didn't activate. Lift, then try again with a slightly longer hold before you slide.

Why Your Fill Floods the Whole Canvas or Fills Nothing

Most threshold complaints come down to one of four causes.

1. The line art isn't closed

ColorDrop stops at edges, so a gap of even a few pixels lets the fill escape into the surrounding area. If the whole canvas fills, zoom in along the outline and look for breaks. Close them with a small brush stroke on the line layer, then try again.

2. The threshold is too high (or too low)

Because Procreate remembers your last setting, a value you dialed in for a soft painted shape can wreck the next fill on crisp line art. At very high values, the fill can spread past edges. At very low values, the fill may barely register. When a fill behaves strangely, drop in the color again and reset the threshold deliberately instead of assuming the default.

3. You're filling on the wrong layer

By default, ColorDrop reads the layer you're working on. If your line art lives on a different layer from your fill layer, the fill sees an empty layer and floods everything. There are two fixes:

• Fill on the same layer as the line art.
• Set the line art layer as the Reference layer, then fill on a separate layer. In the Layers panel, tap the line art layer's thumbnail and choose Reference. ColorDrop on other layers will then follow the lines from that reference.

The Reference approach is the better habit for animation and compositing work. It keeps line art and color on separate layers, so you can export or recolor each independently.

4. You're using a different tool than you think

If the slider isn't responding, check that you're actually using ColorDrop. The Selection tool (S icon) and Recolor (in Adjustments) can look like they behave similarly, but they have their own controls. Make sure neither is active when you start the drag.

When the Slider Won't Move

If the threshold slider seems stuck at one value, such as 0% or 100%, work through this list in order:

1. Retry with one input. Use only a finger or only the Pencil, and don't lift between the drop and the slide.
2. Hold longer before sliding. Give the blue bar a beat to appear.
3. Check free storage. An iPad with very little free space can make apps behave oddly. Leaving at least 10% free is a reasonable baseline.
4. Restart Procreate or the iPad. Temporary glitches sometimes clear this way.
5. Update Procreate and iPadOS. Slider glitches have been reported after some app updates, so staying current may help.
6. Contact Procreate support. If nothing else works, send them your device model, iPadOS version, Procreate version, and the exact steps you took.

Reinstalling the app is a last resort. Back up your gallery first, since deleting the app can delete your artwork if it isn't backed up.

Practical Threshold Settings by Use Case

There's no universal best value, but these starting points save time:

• Clean, hard-edged line art: start at a moderate threshold and increase only if you see unfilled pixels near the lines.
• Anti-aliased or soft lines: go higher so the fill reaches into the semi-transparent edge pixels and doesn't leave a ring.
• Textured or painted shapes: lower thresholds keep the fill from leaking, but you'll likely need to run a couple of passes.
• Small, detailed regions: zoom in before dropping the color. The fill is more predictable when the area is large on screen.

If you still see a thin halo after a good fill, there are two common cleanups. Fill on a layer beneath the line art so the lines overlap the color. Or use Selection with a small feather, then fill, and merge down.

Preparing Procreate Fills for a Motion Pipeline

For motion designers and animators, the threshold setting is one small step in a larger chain. A few habits make Procreate work easier to use downstream:

• Keep line art, flats, and shading on separate layers. The Reference layer option makes this easy, and it gives you clean elements to animate or matte in After Effects.
• Export at the size you need. Work at the final resolution when you can, so you don't depend on upscaling fills with soft edges.
• Use PNG with transparency for layered elements, or export flattened frames when you're building a sequence.
• Name layers and frames consistently, so image sequences import in the right order.

Quick Reference

Final Tips

Treat the threshold as part of each fill, not something you set once. Because Procreate carries over your last value, a quick check at the start of each fill saves undo steps. Close your lines, use a Reference layer for anything you'll animate or composite, and adjust the threshold in a single continuous gesture. With those habits, ColorDrop becomes fast and predictable, and your flats arrive in After Effects or Nuke ready to use.

To change the ColorDrop threshold in Procreate, drag your active color from the top-right dot into a shape and keep your finger or Pencil on the screen after the fill appears. A blue bar shows up along the top of the canvas with a percentage. Slide left to fill less, slide right to fill more, then lift to commit. Procreate remembers that value for your next ColorDrop, so it's worth checking whenever a fill behaves differently than expected.

What ColorDrop Threshold Actually Does

ColorDrop is Procreate's bucket-style fill. You drag the active color into an area, and Procreate floods that area until it hits an edge. The threshold controls how tolerant that edge detection is.

• Low threshold: the fill stays tight. It only covers pixels very close to the color you dropped onto, so it can leave halos or speckled gaps around anti-aliased lines.
• High threshold: the fill spreads further. It pushes into softer edges and can leak across a line, or flood the entire layer.

If you've ever worked with tolerance on a magic wand, a keyer's similarity slider, or a fill tool in Photoshop, the idea is the same. You're deciding how different a neighboring pixel can be before the fill stops.

This matters in production because the fills you make in Procreate often end up as flat color layers, animation cels, or texture elements that you bring into After Effects, Nuke, or Blender. A sloppy fill edge shows up later as fringing or a visible matte line.

Step-by-Step: Changing the Threshold

1. Select your color. Pick the color you want in the Colors panel. It appears in the dot at the top right of the canvas.
2. Drag the color into the shape. Drag from the dot onto the area you want to fill. The color floods in.
3. Don't lift. Keep contact with the screen after the fill appears. Hold still for a moment.
4. Wait for the blue bar. A thin blue bar appears along the top of the canvas with a percentage readout. This is your threshold.
5. Slide left or right. Moving left lowers the percentage and fills less area. Moving right raises it and fills more.
6. Release to commit. Lifting your finger or Pencil applies the fill at that threshold.

A few details trip people up:

• You don't need to touch the slider itself. Your finger can be anywhere on the canvas while you slide.
• You don't need two hands. Using one finger or one Pencil is more reliable, because setting down a second touch can break the continuous contact the adjustment relies on.
• If the percentage never appears, the adjustment mode probably didn't activate. Lift, then try again with a slightly longer hold before you slide.

Why Your Fill Floods the Whole Canvas or Fills Nothing

Most threshold complaints come down to one of four causes.

1. The line art isn't closed

ColorDrop stops at edges, so a gap of even a few pixels lets the fill escape into the surrounding area. If the whole canvas fills, zoom in along the outline and look for breaks. Close them with a small brush stroke on the line layer, then try again.

2. The threshold is too high (or too low)

Because Procreate remembers your last setting, a value you dialed in for a soft painted shape can wreck the next fill on crisp line art. At very high values, the fill can spread past edges. At very low values, the fill may barely register. When a fill behaves strangely, drop in the color again and reset the threshold deliberately instead of assuming the default.

3. You're filling on the wrong layer

By default, ColorDrop reads the layer you're working on. If your line art lives on a different layer from your fill layer, the fill sees an empty layer and floods everything. There are two fixes:

• Fill on the same layer as the line art.
• Set the line art layer as the Reference layer, then fill on a separate layer. In the Layers panel, tap the line art layer's thumbnail and choose Reference. ColorDrop on other layers will then follow the lines from that reference.

The Reference approach is the better habit for animation and compositing work. It keeps line art and color on separate layers, so you can export or recolor each independently.

4. You're using a different tool than you think

If the slider isn't responding, check that you're actually using ColorDrop. The Selection tool (S icon) and Recolor (in Adjustments) can look like they behave similarly, but they have their own controls. Make sure neither is active when you start the drag.

When the Slider Won't Move

If the threshold slider seems stuck at one value, such as 0% or 100%, work through this list in order:

1. Retry with one input. Use only a finger or only the Pencil, and don't lift between the drop and the slide.
2. Hold longer before sliding. Give the blue bar a beat to appear.
3. Check free storage. An iPad with very little free space can make apps behave oddly. Leaving at least 10% free is a reasonable baseline.
4. Restart Procreate or the iPad. Temporary glitches sometimes clear this way.
5. Update Procreate and iPadOS. Slider glitches have been reported after some app updates, so staying current may help.
6. Contact Procreate support. If nothing else works, send them your device model, iPadOS version, Procreate version, and the exact steps you took.

Reinstalling the app is a last resort. Back up your gallery first, since deleting the app can delete your artwork if it isn't backed up.

Practical Threshold Settings by Use Case

There's no universal best value, but these starting points save time:

• Clean, hard-edged line art: start at a moderate threshold and increase only if you see unfilled pixels near the lines.
• Anti-aliased or soft lines: go higher so the fill reaches into the semi-transparent edge pixels and doesn't leave a ring.
• Textured or painted shapes: lower thresholds keep the fill from leaking, but you'll likely need to run a couple of passes.
• Small, detailed regions: zoom in before dropping the color. The fill is more predictable when the area is large on screen.

If you still see a thin halo after a good fill, there are two common cleanups. Fill on a layer beneath the line art so the lines overlap the color. Or use Selection with a small feather, then fill, and merge down.

Preparing Procreate Fills for a Motion Pipeline

For motion designers and animators, the threshold setting is one small step in a larger chain. A few habits make Procreate work easier to use downstream:

• Keep line art, flats, and shading on separate layers. The Reference layer option makes this easy, and it gives you clean elements to animate or matte in After Effects.
• Export at the size you need. Work at the final resolution when you can, so you don't depend on upscaling fills with soft edges.
• Use PNG with transparency for layered elements, or export flattened frames when you're building a sequence.
• Name layers and frames consistently, so image sequences import in the right order.

Quick Reference

Final Tips

Treat the threshold as part of each fill, not something you set once. Because Procreate carries over your last value, a quick check at the start of each fill saves undo steps. Close your lines, use a Reference layer for anything you'll animate or composite, and adjust the threshold in a single continuous gesture. With those habits, ColorDrop becomes fast and predictable, and your flats arrive in After Effects or Nuke ready to use.