Disc
The color disc is a versatile way to choose colours, by giving you control of the hue and saturation separately. Tap on the active colour and choose Disc from the options at the bottom, which will show you the disc interface, shown in the following figure:
Figure 10.19: Disc
Let’s take a closer look at these controls.
Interface
The color disc allows you separate control over hue and saturation. The outer ring is a colour wheel from which you can choose a hue. The disc in the middle displays the saturation and value range for the chosen hue, from which you can pick your preferred colour.
Saturation disc controls
The saturation disc is quite small, which may make it difficult to make finer adjustments. To remedy this, it can act as a separate unit when certain gestures are used.
These gestures help you use the saturation disc more conveniently:
- Zoom: Perform a pinch-out gesture on the saturation disc to temporarily make it larger...
