Some keyboards support the LEDMAP function, and an LEDMAP tag is displayed at the end of the selection layer.

There are two kinds of indicators

1. One is monochrome and can only be set.
2. One is RGB, in addition to setting the indicator function, you can also specify the color.

The function of the indicator light corresponds to several types, and there will be instructions when the mouse is pointed.

1. Num Lock, Caps Lock, Scroll Lock.
2. The highest level of indication that was opened in the layer state at the time.
3. An indication of the current default layer.
4. Special indicators such as WinLock
5. There are also special applications that are not indicators, but are used to configure IO interfaces and functions such as Bluetooth and WS2812.

Layer1-7, when selected, that is, when the highest level of the currently open layer is the corresponding number, the indicator light is illuminated.

Default Layer 1-7, when selected, the current default layer is the set value, then the indicator lights up.

Ydkb.io currently supports up to 8 indicators. The 8 are not physically 8 lights, but 8 logic lights. It can be that multiple lights are used as one indicator at the same time, or they can be the same lamp, and different colors are used as different indicators.

The RGB red in the figure below means that all the bottom lights are bright red.