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Show All: Displays all light indicators. Hide All: Hides all light indicators. Restore Defaults: Returns to the initial default light set. New lights will be deleted, and modified lights will be reset to their original settings.
Light Indicators
Each light has an indicator which can be displayed. Indicators appear as 3D icons that indicate the defined light color and brightness. The visibility of indicators can be set in the Light Properties window.In the example below, Light 1 is a Directional, Light 2 is a Spot, Light 3 is Headlight, and Light 4 is Point.
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