Don't know if anyone has a use for this, or if you're all just using Notepad++, but I prefer UltraEdit.

To that end, I made a (fairly rough at this point) syntax highlighting file for Papyrus using UE.

Hope it helps someone, or even better, if they can make enhancements.

/L20"Papyrus" Line Comment = ; Nocase Block Comment On = /* Block Comment Off = */ Escape Char = \ String Chars = "' String Literal Prefix = @ File Extensions = PSC/Colors = 0,8421376,8421376,8421504,255,/Colors Back = 16777215,16777215,16777215,16777215,16777215,/Colors Auto Back = 1,1,1,1,1,/Font Style = 0,0,0,0,0,/Delimiters = ~!@%^&*()-+=|\/{}[]:;"'<> , .?/Member String = "^([A-Za-z0-9_:.]+^)[ ^t*&]+$S[ ^t]++[(=;]"/Variable String = "^([A-Za-z0-9_:.]+^)[ ^t*&]+$S[ ^t]++[(=;]"/Indent Strings = "Function" "If" "While"/Unindent Strings = "EndFunction" "EndIf" "EndWhile"/Open Brace Strings =  "Function" "If" "While"/Close Brace Strings = "EndFunction" "EndIf" "EndWhile"/Open Fold Strings = "Event" "Function" "If" "State" "While"/Close Fold Strings = "EndEvent" "EndFunction" "EndIf" "EndState" "EndWhile" "Native"/C1"Functions" STYLE_FUNCTION Colors = 255 Colors Back = 16777215 Colors Auto Back = 1 Font Style = 0abs acos Activate Add AddAchievement AddDependentAnimatedObjectReference AddForm AddHavokBallAndSocketConstraint AddInventoryEventFilter AddItem AddPerk AddShout AddSpell AddToFaction AddToMap AdvanceSkill AllowBleedoutDialogue AllowPCDialogue Apply ApplyCrossFade ApplyHavokImpulse asin atan AttachAshPileBlockActivation CalculateEncounterLevel CalculateFavorCost CanFastTravelToMarker CanPayCrimeGold CaptureFrameRate Cast Ceiling CenterOnCell CenterOnCellAndWait Clear ClearArrested ClearDestruction ClearExtraArrows ClearForcedMovement ClearKeepOffsetFromActor ClearLookAt ClearPrison ClearTempEffects CloseUserLog CompleteAllObjectives CompleteQuest cos CreateDetectionEventDamageActorValue DamageAV DamageObject DBSendPlayerPosition DebugChannelNotify DegreesToRadians Delete DeleteWhenAble Disable DisableNoWait DisablePlayerControls Dispel DispelAllSpells DispelSpell DoCombatSpellApply DropObject DumpAliasDataEnable EnableAI ENableFastTravel EnableFastTravel EnableNoWait EnablePlayerControls EndFrameRateCapture EquipItem EquipShout EquipSpell EvaluatePackageFadeOutGame FailAllObjectives FastTravel FindClosestActor FindClosestReferenceOfAnyTypeInList FindClosestReferenceOfType FindRandomActor FindRandomReferenceOfAnyTypeInList FindRandomReferenceOfType FindWeather Fire Floor ForceActive ForceActorValue ForceAddRagdollToWorld ForceAV ForceFirstPerson ForceLocationTo ForceMovementDirection ForceMovementDirectionRamp ForceMovementRotationSpeed ForceMovementRotationSpeedRamp ForceMovementSpeed ForceMovementSpeedRamp ForceRefTo ForceRemoveRagdollFromWorld ForceStart ForceTargetAngle ForceTargetDirection ForceTargetSpeed ForceThirdPersonGameTimeToString Get GetActorBase GetActorOwner GetActorReference GetActorValue GetActorValuePercentage GetAlias GetAngleX GetAngleY GetAngleZ GetAnimationVariableBool GetAnimationVariableFloat GetAnimationVariableInt GetAssociatedSkill GetAt GetAV GetAverageFrameRate GetAVPercentage GetBaseActorValue GetBaseAV GetBaseObject GetBribeAmount GetBudgetCount GetBudgetName GetCasterActor GetClass GetClassification GetCombatState GetCombatTarget GetConfigName GetCrimeFaction GetCrimeGold GetCrimeGoldNonViolent GetCrimeGoldViolent GetCurrentBudget GetCurrentDestructionStage GetCurrentGameTime GetCurrentLocation GetCurrentMemory GetCurrentPackage GetCurrentRealTime GetCurrentScene GetCurrentStageID GetCurrentWeather GetCurrentWeatherTransition GetDeadCount GetDialogueTarget GetDistance GetEditorLocation GetEquippedItemType GetEquippedShield GetEquippedShout GetEquippedSpell GetEquippedWeapon GetFactionOwner GetFactionRank GetFactionReaction GetFavorPoints GetFlyingState GetForcedLandingMarker GetForm GetFormID GetGameSettingFloat GetGameSettingInt GetGameSettingString GetGiftFilter GetGoldAmount GetGoldValue GetHeadingAngle GetHeight GetHigestRelationshipRank GetHighestRelationshipRank GetInfamy GetInfamyNonViolent GetInfamyViolent GetItemCount GetItemHealthPercent GetKey GetKeywordData GetKiller GetLength GetLevel GetLeveledActorBase GetLightLevel GetLinkedRef GetLocation GetLockLevel GetLowestRelationshipRank GetMass GetMaxFrameRate GetMinFrameRate GetNoBleedoutRecovery GetNthLinkedRef GetOpenState GetOutgoingWeather GetOwningQuest GetParentCell GetPlatformName GetPlayer GetPlayerControls GetPlayerGrabbedRef GetPlayersLastRiddenHorse GetPositionX GetPositionY GetPositionZ GetRace GetReaction GetRealHoursPassed GetReference GetRefTypeAliveCount GetRefTypeDeadCount GetRegard GetRelationshipRank GetReputation GetScale Getsix GetSitState GetSize GetSkyMode GetSleepState GetStage GetStageDone GetState GetStolenItemValueCrime GetStolenItemValueNoCrime GetTargetActor GetTemplate GetTriggerObjectCount GetValue GetVersionNumber GetVoiceRecoveryTime GetVoiceType GetWidth GetWorldSpace GoToState GtLockLevelHasAssociation HasCommonParent HasEffectKeyword HasFamilyRelationship HasForm HasKeyword HasLOS HasMagicEffect HasMagicEffectWithKeyword HasNode HasParentRelationship HasPerk HasRefType HasSpell HideTitleSequenceMenuIgnoreFriendlyHits IncrementSkill IncrementSkillBy IncrementStat InterruptCast Is3DLoaded IsActionComplete IsActivateChild IsActivateControlsEnabled IsActivationBlocked IsActive IsAlarmed IsAlerted IsAllowedToFly IsArrested IsArrestingTarget IsAttached IsBleedingOut IsBribed IsCamSwitchControlsEnabled IsChild IsCleared IsCommandedActor IsCompleted IsDead IsDetectedBy IsDisabled IsDoingFavor IsEquipped IsEssential IsEuiped IsFactionInCrimeGroup IsFastTravelEnabled IsFightingControlsEnabled IsFlying IsFurnitureInUse IsFurnitureMarkerInUse IsGhost IsGuard IsHostile IsHostileToActor IsIgnoringFriendlyHits IsInCombat IsInDialogueWithPlayer IsInFaction IsInInterior IsInKillMove IsInMenuMode IsInterior IsIntimidated IsInvulnerable IsJournalControlsEnabled IsLoaded IsLockBroken IsLocked IsLookingControlsEnabled IsMapMarkerVisible IsMenuControlsEnabled IsMovementControlsEnabled IsObjectiveCompleted IsObjectiveDisplayed IsObjectiveFailed IsPlayerExpelled IsPlayersLastRiddenHorse IsPlayerTeammate IsPlaying IsProtected IsRunning IsSameLocation IsSneaking IsSneakingControlsEnabled IsSprinting IsStageDone IsStartin IsStarting IsStopped IsStopping IsTrespassing IsUnconscious IsUnique IsWeaponDrawn IsWordUnlockedKeepOffsetFromActor Kill KillSilent KnockAreaEffectLearnAllEffects LearnEffect LearnNextEffect LockMessageBox ModActorValue ModAV ModCrimeGold ModFactionRank ModFavorPoints ModFavorPointsWithGlobal ModReaction ModRegard MoveTo MoveToInteractionLocation MoveToMyEditorLocation MoveToNode MoveToPackageLocation MoveToWhenUnloaded MuteNotification OpenInventory OpenUserLog OverBudgetPathToReference Pause PlaceActorAtMe PlaceAtMe Play PlayAndWait PlayAnimation PlayAnimationAndWait PlayerKnows PlayerMoveToAndWait PlayerPayCrimeGold PlayGamebryoAnimation PlayIdle PlayIdleWithTarget PlayImpactEffect PlaySubGraphAnimation PlaySyncedAnimationAndWaitSS PlaySyncedAnimationSS PlayTerrainEffect PopTo pow PrecacheCharGen PrecacheCharGenClear ProcessTrapHit PushActorAwayQueryStat QuitGame QuitToMainMenuRadiansToDegrees RandomFloat RandomInt RegisterForAnimationEvent RegisterForLOS RegisterForSingleLOSGain RegisterForSingleLOSLost RegisterForSingleUpdate RegisterForSingleUpdateGameTime RegisterForSleep RegisterForTrackedStatsEvent RegisterForUpdate RegisterForUpdateGameTime ReleaseOverride RemoteCast Remove RemoveAddedForm RemoveAllInventoryEventFilters RemoveAllItems RemoveCrossFade RemoveDependentAnimatedObjectReference RemoveFromAllFactions RemoveFromFaction RemoveHavokConstraints RemoveInventoryEventFilter RemoveItem RemovePerk RemoveShout RemoveSpell RequestAutoSave RequestModel RequestSave Reset ResetHealthAndLimbs ResetHelpMessage RestoreActorValue RestoreAV Resurrect RevertSay SendAnimationEvent SendAssaultAlarm SendPlayerToJail SendStealAlarm SendStoryEvent SendStoryEventAndWait SendTrespassAlarm SendWereWolfTransformation ServeTime Set SetActive SetActorCause SetActorOwner SetActorValue SetAlert SetAllowFlying SetAlly SetAlpha SetAngle SetAnimationVariableBool SetAnimationVariableFloat SetAnimationVariableInt SetAttackActorOnSight SetAV SetBeastForm SetBribed SetCameraTarget SetCleared SetCrimeFaction SetCrimeGold SetCrimeGoldViolent SetCriticalStage SetCurrentStageID SetDestroyed SetDoingFavor SetEnemy SetEssential SetFactionOwner SetFactionRank SetFogPlanes SetFogPower SetFootIK SetForcedLandingMarker SetFrequency SetGhost SetGodMode SetHeadTracking SetHudCartMode SetInChargen SetINIBool SetINIFloat SetINIInt SetINIString SetInstanceVolume SetIntimidated SetInvulnerable SetKeywordData SetLockLevel SetLookAt SetMotionType SetNoBleedoutRecovery SetNoFavorAllowed SetNotShowOnStealthMeter SetObjectiveCompleted SetObjectiveDisplayed SetObjectiveFailed SetOpen SetOutfit SetPlayerAIDriven SetPlayerControls SetPlayerEnemy SetPlayerExpelled SetPlayerReportCrime SetPlayerResistingArrest SetPlayerTeammate SetPosition SetProtected SetPublic SetRace SetRaction SetReaction SetRelationshipRank SetRestrained SetScale SetSittingRotation SetStage SetUnconscious SetValue SetVehicle SetVoiceRecoveryTime SetVolume ShakeCamera ShakeController Show ShowAsHelpMessage ShowBarterMenu ShowFirstPersonGeometry ShowGiftMenu ShowRaceMenu ShowRefPosition ShowTitleSequenceMenu ShowTrainingMenu sin SplineTranslateTo SplineTranslateToRefNode sqrt Start StartCannibal StartCombat StartFrameRateCapture StartObjectProfiling StartScriptProfiling StartStackProfiling StartTitleSequence StartVampireFeed Stop StopCombat StopCombatAlarm StopInstance StopObjectProfiling StopScriptProfiling StopStackProfiling StopTranslationTakeScreenshot tan TeachWord TetherToHorse ToggleAI ToggleCollisions ToggleMenus Trace TraceConditional TraceStack TraceUser TranslateTo TrapSoul TriggerScreenBlood TryoEnable TryToAddToFaction TryToDisable TryToKill TryToMoveTo TryToRemoveFromFaction TryToReset TryToStopCombatUnequipAll UnEquipItem UnequipItem UnequipShout UnequipSpell UnLockOwnedDoorsInCell UnlockWord UnMute UnPause UnregisterForAnimationEvent UnregisterForLOS UnregisterForSleep UnregisterForTrackedStatsEvent UnregisterForUpdate UnregisterForUpdateGameTime UpdateCurrentInstanceGlobal UsingGamepadWait WaitForAnimationEvent WaitGameTime WaitMenuMode WillIntimidateSucceed WornHasKeyword/C2"Events" STYLE_EVENT Colors = 16744448 Colors Back = 16777215 Colors Auto Back = 1 Font Style = 0OnActivate OnAnimationEvent OnAttachedToCell OnBeginState OnCellAttach OnCellDetach OnCellLoad OnClose OnCombatStateChanged OnContainerChanged OnDeath OnDying OnDestructionStageChanged OnDetachedFromCell OnEffectFinish OnEffectStart OnEndState OnEnterBleedout OnEquipped OnGainLOS OnGetUp OnGrab OnHit OnInit OnItemAdded OnItemRemoved OnLoad OnLocationChange OnLockStateChanged OnLostLOS OnMagicEffectApply OnObjectEquipped OnObjectUnequipped OnOpen OnPackageChange OnPackageEnd OnPackageStart OnRaceSwitchComplete OnRead OnRelease OnReset OnSell OnSit OnSleepStart OnSleepStop OnSpellCast OnStoryActivateActor OnStoryAddToPlayer OnStoryArrest OnStoryAssaultActor OnStoryBribeNPC OnStoryCastMagic OnStoryChangeLocation OnStoryCraftItem OnStoryCrimeGold OnStoryCure OnStoryDialogue OnStoryDiscoverDeadBody OnStoryEscapeJail OnStoryFlatterNPC OnStoryHello OnStoryIncreaseLevel OnStoryIncreaseSkill OnStoryInfection OnStoryIntimidateNPC OnStoryJail OnStoryKillActor OnStoryNewVoicePower OnStoryPayFine OnStoryPickLock OnStoryPlayerGetsFavor OnStoryRelationshipChange OnStoryRemoveFromPlayer OnStoryScript OnStoryServedTime OnStoryTrespass OnTrackedStatsEvent OnTranslationAlmostComplete OnTranslationComplete OnTranslationFailed OnTrapHit OnTrapHitStart OnTrapHitStop OnTrigger OnTriggerEnter OnTriggerLeave OnUnequipped OnUnload OnUpdate OnUpdateGameTime OnWardHit/C3"Commands" STYLE_COMMAND Colors = 32768 Colors Back = 16777215 Colors Auto Back = 1 Font Style = 1Activator Actor ActorBase Alias Ammo Armor AssociationTypeBookCell Class EffectShader EncounterZone ExplosionFaction FormGlobalVariable ImageSpaceModifierKey KeywordLeveledItem Location LocationAlias LocationRefTypeMagickEfect Message MiscObject MusicTypeNotificationObjectReference OutfitPackage ProjectileQuestRace ReferenceAliasScene Shout Sound SpellTopic TopicInfoVisualEffectWeapon Weather WordOfPower/C4"Keywords" STYLE_KEYWORD Colors = 0 Colors Back = 16777215 Colors Auto Back = 1 Font Style = 1As Auto AutoReadOnlyBoolConditionalDebugElse ElseIf EndEvent EndProperty Extends EndFunction Event EndIfFalse Float FunctionGame GlobalHiddenIf Import IntLengthNative New NoneParent PropertyReturnScriptName Self StringTrueUtility/C5"Operators" STYLE_OPERATOR Colors = 32768 Colors Back = 16777215 Colors Auto Back = 1 Font Style = 0-!%& ()*,./[]|+<=>

Feel free to make an "UltraEdit Setup" page like the "Notepad++ Setup" page on the Creation Kit wiki, it'd be good to have this in an accessible place like that.

Cipscis

Good idea - have done this. Hopefully others can improve on what I've done so far!