To color fill on a different layer in Procreate, set your line art layer as the Reference layer, select a new empty layer, and drag a color onto the canvas with ColorDrop. Reference tells ColorDrop to read the shapes from the line art layer but place the fill on whichever layer you're working on. To set it, open the Layers panel, tap the line art layer's thumbnail, and choose Reference. The thumbnail then shows the word "Reference."

Why ColorDrop fills the whole canvas by default

ColorDrop looks at the layer you're currently on. If you select an empty layer under your line art and drop a color, Procreate sees nothing but transparent pixels, so it floods the entire canvas. If you drop onto the layer holding the shape, it fills that shape but also puts the color on the same layer as the line work.

Reference separates the two jobs. One layer defines the boundaries, and another receives the paint. Once you understand that, most "why won't it fill right" problems come down to which layer is marked Reference and which is active.

Step-by-step: fill on a separate layer

1. Put your line art on its own layer. Fills stay clean when the outlines are isolated, and this is also how you'll want them for compositing later.
2. Mark it as Reference. Open Layers, tap the line art thumbnail, and tap Reference at the bottom of the Layer Options menu. A check mark appears beside the option.
3. Create a new layer. Place it above or below the line art. Below is the usual choice, so the outlines sit on top of the color.
4. Select the new layer. Make sure it's highlighted in the Layers panel.
5. Drag your color in. Drag the Active Color dot from the top right into the area you want to fill, then release.
6. Adjust the Threshold before you lift. After dropping, keep your finger or Pencil on the canvas and wait for the blue bar at the top. Slide left to fill less or right to fill more. The percentage shows at the top of the interface.

Reference works from any position in the layer stack, so the line art can sit at the top, the bottom, or in between.

Use Continue Filling for speed

After a ColorDrop, tap Continue Filling to fill more areas with single taps. You can still tap, hold, and drag to change the Threshold. Tap the tick at the top, or switch to another tool, to exit.

This is the fast route for flats. With a Reference line art layer and a fresh layer underneath, you can tap through a whole character quickly. Change the color, tap the next region, and repeat. If you want separate layers per color, such as skin, hair, and clothing, create a new layer between colors. Because the Reference layer stays active, you never have to touch it.

Alternative: Automatic Selection plus Fill Layer

Reference also affects the Automatic Selection tool. That gives you a second method:

1. Keep the line art layer set as Reference.
2. Use Selections → Automatic and tap the region you want. Tap additional regions to add them.
3. Switch to the layer where the color should land.
4. Open Layer Options for that layer and tap Fill Layer.

This is slower than ColorDrop but gives you a selection you can reuse. That helps if you want to feather an edge, fill a gradient instead of a flat color, or put the same shape on several layers.

Procreate also has Selections → Color Fill, which fills automatically as soon as you complete a selection. It only works on a single layer, not a group, so select the target layer first.

Troubleshooting common problems

The fill covers the entire canvas. Either no layer is marked Reference, or the Reference layer is empty. Check the thumbnail for the word "Reference" and make sure the layer has content.

The color leaks outside the shape. There's probably a gap in your line work. Close it with a brush stroke on the line art layer, or lower the Threshold. Increasing Threshold can help with anti-aliased edges, but too much will push the fill past the line.

There's a white halo between color and line. The fill is stopping at the anti-aliased edge of the line. Raise the Threshold slightly, or put the color layer under the line art so the outline overlaps the edge.

It fills a shape you didn't want. If your line art is split across several layers, Reference only reads one of them. Procreate allows a single Reference layer at a time. Merge the pieces of line work you need, or copy them onto one combined layer and set that as Reference. Keep the original separate layers hidden or in a group so you don't lose editability.

The fill is working from the wrong layer. If you set a color layer as Reference by accident, ColorDrop will take its boundaries from that layer instead of from your line art. Remove Reference from every layer except the one holding outlines.

Artists coming from other apps often expect a fill tool that samples every visible layer. Procreate doesn't work that way, so merging or copying the line work onto one layer is the usual workaround.

A clean layer structure for production

If the flats are going to be used downstream, structure the file deliberately:

• Line art (Reference), top of the stack.
• Color flats, one layer per material or character region, below the line art.
• Shading and highlights, as separate layers clipped to the flats.
• Background, on its own layer or group.

Separate flats can be useful as mattes or masks if you later composite the artwork in other software.

If you're coloring animation frames in Procreate, apply the same rule on every frame. Keep the Reference layer consistent and keep flats on their own layers.

Where Styleframe fits in a Procreate-to-motion pipeline

Once your flats and line art are done, the next question for a motion designer is usually how to extend the look across more frames or shots without redrawing everything. Styleframe is one tool you could look at for that stage. Check its documentation for current features and export options. Your Procreate layers stay your source of truth, and the compositing stays in your existing tools.

It doesn't replace the fill workflow above. Procreate handles the drawing and flats.

Quick reference

Summary

To color fill on a different layer in Procreate, you don't change the fill tool. You change what it reads. Mark the line art layer as Reference, select the layer that should receive the paint, and ColorDrop does the rest. Keep line art, flats, and shading on separate layers, and the file will be easier to work with in other tools later.

To color fill on a different layer in Procreate, set your line art layer as the Reference layer, select a new empty layer, and drag a color onto the canvas with ColorDrop. Reference tells ColorDrop to read the shapes from the line art layer but place the fill on whichever layer you're working on. To set it, open the Layers panel, tap the line art layer's thumbnail, and choose Reference. The thumbnail then shows the word "Reference."

Why ColorDrop fills the whole canvas by default

ColorDrop looks at the layer you're currently on. If you select an empty layer under your line art and drop a color, Procreate sees nothing but transparent pixels, so it floods the entire canvas. If you drop onto the layer holding the shape, it fills that shape but also puts the color on the same layer as the line work.

Reference separates the two jobs. One layer defines the boundaries, and another receives the paint. Once you understand that, most "why won't it fill right" problems come down to which layer is marked Reference and which is active.

Step-by-step: fill on a separate layer

1. Put your line art on its own layer. Fills stay clean when the outlines are isolated, and this is also how you'll want them for compositing later.
2. Mark it as Reference. Open Layers, tap the line art thumbnail, and tap Reference at the bottom of the Layer Options menu. A check mark appears beside the option.
3. Create a new layer. Place it above or below the line art. Below is the usual choice, so the outlines sit on top of the color.
4. Select the new layer. Make sure it's highlighted in the Layers panel.
5. Drag your color in. Drag the Active Color dot from the top right into the area you want to fill, then release.
6. Adjust the Threshold before you lift. After dropping, keep your finger or Pencil on the canvas and wait for the blue bar at the top. Slide left to fill less or right to fill more. The percentage shows at the top of the interface.

Reference works from any position in the layer stack, so the line art can sit at the top, the bottom, or in between.

Use Continue Filling for speed

After a ColorDrop, tap Continue Filling to fill more areas with single taps. You can still tap, hold, and drag to change the Threshold. Tap the tick at the top, or switch to another tool, to exit.

This is the fast route for flats. With a Reference line art layer and a fresh layer underneath, you can tap through a whole character quickly. Change the color, tap the next region, and repeat. If you want separate layers per color, such as skin, hair, and clothing, create a new layer between colors. Because the Reference layer stays active, you never have to touch it.

Alternative: Automatic Selection plus Fill Layer

Reference also affects the Automatic Selection tool. That gives you a second method:

1. Keep the line art layer set as Reference.
2. Use Selections → Automatic and tap the region you want. Tap additional regions to add them.
3. Switch to the layer where the color should land.
4. Open Layer Options for that layer and tap Fill Layer.

This is slower than ColorDrop but gives you a selection you can reuse. That helps if you want to feather an edge, fill a gradient instead of a flat color, or put the same shape on several layers.

Procreate also has Selections → Color Fill, which fills automatically as soon as you complete a selection. It only works on a single layer, not a group, so select the target layer first.

Troubleshooting common problems

The fill covers the entire canvas. Either no layer is marked Reference, or the Reference layer is empty. Check the thumbnail for the word "Reference" and make sure the layer has content.

The color leaks outside the shape. There's probably a gap in your line work. Close it with a brush stroke on the line art layer, or lower the Threshold. Increasing Threshold can help with anti-aliased edges, but too much will push the fill past the line.

There's a white halo between color and line. The fill is stopping at the anti-aliased edge of the line. Raise the Threshold slightly, or put the color layer under the line art so the outline overlaps the edge.

It fills a shape you didn't want. If your line art is split across several layers, Reference only reads one of them. Procreate allows a single Reference layer at a time. Merge the pieces of line work you need, or copy them onto one combined layer and set that as Reference. Keep the original separate layers hidden or in a group so you don't lose editability.

The fill is working from the wrong layer. If you set a color layer as Reference by accident, ColorDrop will take its boundaries from that layer instead of from your line art. Remove Reference from every layer except the one holding outlines.

Artists coming from other apps often expect a fill tool that samples every visible layer. Procreate doesn't work that way, so merging or copying the line work onto one layer is the usual workaround.

A clean layer structure for production

If the flats are going to be used downstream, structure the file deliberately:

• Line art (Reference), top of the stack.
• Color flats, one layer per material or character region, below the line art.
• Shading and highlights, as separate layers clipped to the flats.
• Background, on its own layer or group.

Separate flats can be useful as mattes or masks if you later composite the artwork in other software.

If you're coloring animation frames in Procreate, apply the same rule on every frame. Keep the Reference layer consistent and keep flats on their own layers.

Where Styleframe fits in a Procreate-to-motion pipeline

Once your flats and line art are done, the next question for a motion designer is usually how to extend the look across more frames or shots without redrawing everything. Styleframe is one tool you could look at for that stage. Check its documentation for current features and export options. Your Procreate layers stay your source of truth, and the compositing stays in your existing tools.

It doesn't replace the fill workflow above. Procreate handles the drawing and flats.

Quick reference

Summary

To color fill on a different layer in Procreate, you don't change the fill tool. You change what it reads. Mark the line art layer as Reference, select the layer that should receive the paint, and ColorDrop does the rest. Keep line art, flats, and shading on separate layers, and the file will be easier to work with in other tools later.