Highlight shallow areas using custom depth shading in i-Boating

i-Boating app now supports custom depth shading to highlight shallow areas. I've included a specific example at the end illustrating how to use and before/after screenshots.

1. Without depth shading
2. With depth shading
3. How I figured out what value to choose for shading?

Before depth shading
For e.g. this is what the default map looks for New Jersey inter coastal waterway.  There are two depth areas here (one below 2.95 ft and the other above it). When navigating you would want to highlight the shallow area with a different color.

With depth shading

Here is how to use depth shading:

• Tap menu/overflow button and select "Settings"
• Scroll down and check the box that says "Enable Custom Depth Shading"
• Change shallow depth to 0 ft and safety depth to 2.9f ft
• Tap Save

Here is a screenshot with custom depth shading.

How to figure out what value to use?

You can use object query to find out depth range of an area. Simply long touch any where int the area and select "Object Query".