====== Shaders ======

Shaders modify the "normal" look of a [[widget]] eg. by only showing a certain part of it or changing the color. Different widgets have different shaders available.

To add a shader simply select the shader property and pick the shader you want to use. Currently only one shader per widget can be used.

===== Segment =====

{{:screens:shader-segment.png?200 }}
The segment shader divides a widget into two parts based on a circle segment. The segment always starts at 0 degrees and ends at the given degree.

The [[opacity]] of the widget in and outside the segment can be specified.

===== Segment Between =====

{{:screens:shader-segment-between.png?200 }}
This shader is very similar to the [[#Segment]] shader above. The only difference is that you may specify the start angle as well.

===== Radar =====

{{:screens:shader-radar.png?200 }}
Again similar to the [[#Segment]] shader but will have a "shadow" following the segment creating a Radar effect.

===== HSV =====

The RGB shader let's you modify the color of a widget by specifying Hue, Saturation and Colorvalue adjustments.

===== RGB =====

The RGB shader let's you modify the Red/Green/Blue channels of the widget. Each channel accepts a value between //-100// and //100//. 

Using a //-100// disables that channel completely. Eg. a red shape (#ff0000) would be black when the red channel is adjusted to //-100//. Whereas a black shape (#000000) would turn red when the red channel is adjusted to //100//.

Each channel accepts a complex expression as well which allows you to dynamically adjust colors based on [[tags]].