#1 Rear Logic Displays with Arduino

here is the next step for my Logic Displays system with Arduino.
I wasn't able to make the rear logic display until now because I haven't received the right leds. the red, green and yellow/amber leds haven't got the same brightness. leds are managed and powered by the max7219 and we cannot make red more bright and yellow less for example because leds with differents colors are put together to make rows and leds are not individually powered on.
so I've ordered a lot of leds models and finally got the 3 colors with nearly the same britghtness.

leds are really close from each other, so I've removed the frange of all leds. without franges leds can get the good place in the bezel.

here is the result after soldering




and now the 2 FLD and the RLD


and a small video