The Change Paint tool will replace all the existing paint layers of the selected path with the layers in the currently selected paint set. Unless the path has been Scaled (discussed below), the only option available when changing the paint on a path is whether to completely replace its Paint layers with the currently selected paint layers or to change only the colors of the paint layers. When changing only the colors, the other attribures of the layers, such as stroke width, join type, cap type, etc. are unaffected. If the selected path has more paint layers than the currently selected Paint Set, the upper layers of the path are discarded. If the selected path has fewer paint layers than the currently selected Paint Set, then the upper layers of the set won’t be unused.
If the path has been Scaled at some point (either the path itself has changed scale since its construction or the path is a scaled copy of another path), another construction option is available. You can apply the new paint layers using either:
- the stroke width adjusted to the scale of the canvas (called “canvas scale”)
- or the stroke adjusted to scale of the path (called “path scale”)
“Canvas scale” will render the path as if it had been drawn fresh using the canvas’ current scale, that is, it will
adjust the stroke width of the newly applied paint so that the path appears as if it had been freshly constructed at the current zoom level. “Path scale” will render the path as if the original path had been drawn with the new paint set and then scaled. Here’s the difference: