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4. The Screen Setup of PhotoLine

## 4.20 The Histogram

The histogram shows the color distribution of the active picture. It has two workings modes: it can show the color distribution of the whole picture or only of the active layer. The working mode can be changed by using the context menu.

The calculation of the histogram may last a while when used on very large images or on documents containing many layers, and therefore may be annoying. Simply turn it off in that rare cases.