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* '''HOWTO: STRAIGHT LINE''' --- You can use pencil, paintbrush, eraser, airbrush, etc: Click and create a single dot -> hold down and maintain shift -> move to direct line -> click to complete line.The Paintbrush Tool "P" will have anti-aliasing enabled and only the brush hardness can have any impact on this. When using the Pencil Tool "N" you can use a brush with no alpha channel. The Paintbrush Tool "P" will have anti-aliasing enabled and only the brush hardness can have any impact on this. When using the Pencil Tool "N" you can use a brush with no alpha channel.