132 Painting and Drawing
To erase with the Standard Eraser:
1. Select Standard Eraser from the Tools toolbar's Eraser Tools flyout.
2. (Optional) Change attributes, especially brush Size and Opacity, on the
Context toolbar.
For erasing with an airbrush effect or hard-edged brush, check the
Airbrush or Hard Edge option.
For tablet users, pressure sensitivity can be switched on via Brush Options
(click Brush thumbnail); ensure the Controller drop-down list is set to
"Pressure" on selected attributes.
3. Drag with the tool on the active layer. On the Background layer, erased pixels
expose the current background color. On other layers, they expose transparency.
To erase with the Background Eraser:
1. Select Background Eraser from the Tools toolbar's Eraser Tools
flyout.
2. (Optional) Change properties on the Context toolbar as described above.
3. Drag with the tool on the active layer to erase pixels similar to a sampled
reference color directly under the brush tip.
With "Contiguous" limits (the default), the tool erases only within-
tolerance pixels adjacent to each other and within the brushes width;
this tends to restrict erasure to one side of an edge or line. When you
set "Discontiguous" limits, all matching pixels are erased under the
brush even if they are non-adjacent (great for removing uniform
background like sky). The "Edge Detected" setting can improve erasure
along one side of a contrasting edge or line.
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