Continuous scales with manual breaks have incorrect legend ticks #106
Description
Legend ticks for continuous colour scales aren't functioning correctly when breaks are supplied. This is noticeable when breaks produce a piecewise function which greatly alters the colour mapping.
These should not produce the same legend:
# auto-breaks
scale_color_power(col, limits = -3:3)
# manual-linear-breaks
scale_color_power(col, limits = -3:3, breaks = 0:3)
# manual-breaks-power
scale_color_power(col, limits = -3:3, breaks = breaks_power()(0:3))These scales have the following form when applied to a 0:1 numeric range:
Expected colour legend something like:
