There is a yellow error that appears. And I know it's Mod Manager's as it was the only mod installed. Is this totally harmless?:

-----(Information in the log)-----
Type TextureChooser probably needs a StaticConstructorOnStartup attribute, because it has a field LeftArrow of type Texture2D. All assets must be loaded in the main thread.
Verse.Log:Warning(String, Boolean)
Verse.StaticConstructorOnStartupUtility:ReportProbablyMissingAttributes()
Verse.PlayDataLoader:<DoPlayLoad>m__2()
Verse.LongEventHandler:ExecuteToExecuteWhenFinished()
Verse.LongEventHandler:UpdateCurrentAsynchronousEvent()
Verse.LongEventHandler:LongEventsUpdate(Boolean&)
Verse.Root:Update_Patch1(Object)
Verse.Root_Entry:Update()

If this is harmless and known, then should it be mentioned in the description that this is harmless? That way, players know this exists so we stop worrying and stop asking questions about it?

A similar yellow error was asked about by some concerned players a while ago:
Hey Fluff, i was wondering if i could get some advice on what this means