Addition of hard brigtness limit for RGB_Matrix (#3299)

* Addition of hard brigtness limit for RGB_Matrix

- Added a define "RGB_MATRIX_MAXIMUM_BRIGHTNESS" to enable hard limiting the maximum brightness for rgb_matrix
- Used the above define to limit the maximum brigthness of HS60 for better stability

* Added docs for new rgb_matrix define

* Addition of check for maximum brightness

1 files changed, 1 insertions, 0 deletions

diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index 5d2db3b970..cb7aa666cf 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -119,6 +119,7 @@ A similar function works in the keymap as `rgb_matrix_indicators_user`.
 	#define RGB_DISABLE_AFTER_TIMEOUT 0 // number of ticks to wait until disabling effects
 	#define RGB_DISABLE_WHEN_USB_SUSPENDED false // turn off effects when suspended
     #define RGB_MATRIX_SKIP_FRAMES 1 // number of frames to skip when displaying animations (0 is full effect) if not defined defaults to 1
+    #define RGB_MATRIX_MAXIMUM_BRIGHTNESS 200 // limits maximum brightness of LEDs to 200 out of 255. If not defined maximum brightness is set to 255
 
 ## EEPROM storage