Most featured chart applications allow us to show alternate background plot bands with a different interlaced color. Our interlaced color here is a semi-transparent gradient, but only few apps can show it as such. Somehow confusing, these bands or rectangular areas are usually called strip lines. For horizontal bar charts or rotated plots, the strip lines are vertical. All other cases - including the cartesian charts - must show horizontal strip lines. Interlaced colors may apply to even or odd bands. In our charts, we tried to always start with the interlaced color with the first band, and all even bands. When not built-in, we emulate the feature with specific code. We also tried to show dashed minor gridlines between the major plot lines, but not all apps support it.