Correct backlight on state docs (#6358)

* Correct backlight on state docs

* Reword to make it less confusing

diff --git a/docs/feature_backlight.md b/docs/feature_backlight.md
index 26a5078ca09a4cb8233910f91c44ea5cfce4b9bc..64c663076ba1f61af53929dd28c15c68caf5d315 100644 (file)
--- a/docs/feature_backlight.md
+++ b/docs/feature_backlight.md
@@ -73,8 +73,10 @@ To change the behaviour of the backlighting, `#define` these in your `config.h`:
 
 ## Backlight On State
 
-Most backlight circuits are driven by an N-channel MOSFET or NPN transistor. This means that to turn the transistor *on* and light the LEDs, you must drive the backlight pin, connected to the gate or base, *low*.
-Sometimes, however, a P-channel MOSFET, or a PNP transistor is used. In this case you must `#define BACKLIGHT_ON_STATE 1`, so that when the transistor is on, the pin is driven *high* instead.
+Most backlight circuits are driven by an N-channel MOSFET or NPN transistor. This means that to turn the transistor *on* and light the LEDs, you must drive the backlight pin, connected to the gate or base, *high*.
+Sometimes, however, a P-channel MOSFET, or a PNP transistor is used. In this case, when the transistor is on, the pin is driven *low* instead.
+
+This functionality is configured at the keyboard level with the `BACKLIGHT_ON_STATE` define.
 
 ## Multiple backlight pins