Hi,
following please find a shot of a step by step guidance:
1. Place the master LED control on the FP
2. Right click - Advanced - Customize;
3. Left click on the spanner (-> customization mode)
4. Right click in the center of the LED -> Picture Item: Notice that there are four images: on, off, transition on->off (mouse button pressed); transition off->on (mouse button pressed); All four images have to be replaced to get a smooth control
5. Choose picture item 1 (2,3,4)
6. To replace the current image (e.g. green circle or rectangle) choose one of the available options which are listed in the right click menu -> "Import Picture from Clipboard", "Import from File", ...
You need at least two different triangle images (for example light and dark green with a gradient to get a 3D effect)
7. Repeat step (4) and (5) to replace all picture items
8. Adapt/Replace the shadow of the control to complete the 3D effect.