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Here you may choose to have vertical guides showing where each bell position is; this can be useful when drawing a line without numbers. There are two styles to choose from: solid lines in each position, or shaded strips.

After selecting which sort of guides you would like, select the colour of the guides. Colours may be specified in two ways:

• Many colours are recognised by name, for example red or blanched almond.
• Grey levels are given by a single number from 0 (black) to 100 (white).
• Other colours are given by three numbers between 0 and 100, separated by hyphens (-). The first number indicates the level of red, the second the level of green, and the third the level of blue. For example, 0-0-100 means blue, and 100-100-0 gives yellow.

For the lines style, you may also specify the width of the line. This may be given as a decimal or a fraction, in various units, for example 1/4 pt or 0.5mm.