I’m on an obscure resolution which is 1680x1050 and on Halo CE there is this little orange bar on the bottom of my screen going straight across, this is incredibly annoying and very noticeable in the dark, this issue only occurs on the classic graphics.
Might be that there isn’t much that can be done about this, but I would make sure and file a bug report about this on the Halo Support site: https://aka.ms/HaloSupport
Be sure to read over the known issues list first before reporting