Command 1:
/scoreboard objectives add sidebar dummy {"text":"SERVER INFO","color":"dark_blue","bold":"true"}
Command 2:
/scoreboard objectives setdisplay sidebar sidebar
Command 3:
/team add dark_green
Command 4:
/team modify dark_green color dark_green
Command 5:
/team join dark_green Players:
Command Block 1:
scoreboard players set Players: sidebar 0
Command Block 2:
execute as @a run scoreboard players add Players: sidebar 1