Why red Waves on Serial on Linux Version

Why Red waves on Serial tried all suggestions from AI ChatGPT

Why on IIC_CLK=32

-D IIC_SDA=33

-D IIC_OnOff=21 but not on here

-D SSD_SCK=18

-D SSD_SDA=23

-D SSD_RESET=-1 

The skech is compining fine anyway

but it anoys me.

Not enough information to help you. What’s the platformio.ini? Minimal code to reproduce this? .vscode/c_cpp_properties.json?