From 48216e560481e770019317e09a1712358c69a32d Mon Sep 17 00:00:00 2001
From: hivehum <ketchupfaced@gmail.com>
Date: Sat, 15 Feb 2025 18:11:00 -0500
Subject: [PATCH 1/4] personally i love it when things just work

---
 Content.Client/Options/UI/OptionsMenu.xaml    |  2 +
 Content.Client/Options/UI/OptionsMenu.xaml.cs |  1 +
 .../_DV/Options/UI/Tabs/DeltaTab.xaml         | 23 +++++++
 .../_DV/Options/UI/Tabs/DeltaTab.xaml.cs      | 46 ++++++++++++++
 .../_DV/Overlays/UltraVisionOverlay.cs        | 52 ++++++++++++++++
 .../_DV/Overlays/UltraVisionSystem.cs         | 61 +++++++++++++++++++
 .../_Nyanotrasen/Overlays/DogVisionOverlay.cs | 52 ++++++++++++++++
 .../_Nyanotrasen/Overlays/DogVisionSystem.cs  | 61 +++++++++++++++++++
 .../_DV/Abilities/UltraVisionComponent.cs     |  8 +++
 Content.Shared/_DV/CCVars/DCCVars.cs          |  5 ++
 .../Abilities/DogVisionComponent.cs           | 10 +++
 .../en-US/_DV/escape-menu/options-menu.ftl    |  4 ++
 Resources/Locale/en-US/_DV/traits/traits.ftl  | 10 +++
 .../Prototypes/_DV/Shaders/birdvision.yml     |  4 ++
 .../Prototypes/_DV/Traits/disabilities.yml    | 15 +++++
 .../_Nyanotrasen/Shaders/dogvision.yml        |  4 ++
 .../Textures/_DV/Shaders/ultravision.swsl     | 14 +++++
 .../_Nyanotrasen/Shaders/dogvision.swsl       | 14 +++++
 18 files changed, 386 insertions(+)
 create mode 100644 Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml
 create mode 100644 Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs
 create mode 100644 Content.Client/_DV/Overlays/UltraVisionOverlay.cs
 create mode 100644 Content.Client/_DV/Overlays/UltraVisionSystem.cs
 create mode 100644 Content.Client/_Nyanotrasen/Overlays/DogVisionOverlay.cs
 create mode 100644 Content.Client/_Nyanotrasen/Overlays/DogVisionSystem.cs
 create mode 100644 Content.Shared/_DV/Abilities/UltraVisionComponent.cs
 create mode 100644 Content.Shared/_Nyanotrasen/Abilities/DogVisionComponent.cs
 create mode 100644 Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl
 create mode 100644 Resources/Prototypes/_DV/Shaders/birdvision.yml
 create mode 100644 Resources/Prototypes/_DV/Traits/disabilities.yml
 create mode 100644 Resources/Prototypes/_Nyanotrasen/Shaders/dogvision.yml
 create mode 100644 Resources/Textures/_DV/Shaders/ultravision.swsl
 create mode 100644 Resources/Textures/_Nyanotrasen/Shaders/dogvision.swsl

diff --git a/Content.Client/Options/UI/OptionsMenu.xaml b/Content.Client/Options/UI/OptionsMenu.xaml
index 90486a196ad1..4a2bd194daf3 100644
--- a/Content.Client/Options/UI/OptionsMenu.xaml
+++ b/Content.Client/Options/UI/OptionsMenu.xaml
@@ -1,5 +1,6 @@
 <DefaultWindow xmlns="https://spacestation14.io"
             xmlns:tabs="clr-namespace:Content.Client.Options.UI.Tabs"
+            xmlns:dtabs="clr-namespace:Content.Client._DV.Options.UI.Tabs"
             Title="{Loc 'ui-options-title'}"
             MinSize="800 450">
     <TabContainer Name="Tabs" Access="Public">
@@ -8,5 +9,6 @@
         <tabs:KeyRebindTab Name="KeyRebindTab" />
         <tabs:AudioTab Name="AudioTab" />
         <tabs:AccessibilityTab Name="AccessibilityTab" />
+        <dtabs:DeltaTab Name="ExtraTab" />
     </TabContainer>
 </DefaultWindow>
diff --git a/Content.Client/Options/UI/OptionsMenu.xaml.cs b/Content.Client/Options/UI/OptionsMenu.xaml.cs
index b749d1f234d0..53fed13ba2b0 100644
--- a/Content.Client/Options/UI/OptionsMenu.xaml.cs
+++ b/Content.Client/Options/UI/OptionsMenu.xaml.cs
@@ -18,6 +18,7 @@ public OptionsMenu()
             Tabs.SetTabTitle(2, Loc.GetString("ui-options-tab-controls"));
             Tabs.SetTabTitle(3, Loc.GetString("ui-options-tab-audio"));
             Tabs.SetTabTitle(4, Loc.GetString("ui-options-tab-accessibility"));
+            Tabs.SetTabTitle(5, Loc.GetString("ui-options-tab-extra")); // Extra settings
 
             UpdateTabs();
         }
diff --git a/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml b/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml
new file mode 100644
index 000000000000..985e7da38651
--- /dev/null
+++ b/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml
@@ -0,0 +1,23 @@
+<tabs:DeltaTab xmlns="https://spacestation14.io"
+                  xmlns:controls="clr-namespace:Content.Client.UserInterface.Controls"
+                  xmlns:tabs="clr-namespace:Content.Client._DV.Options.UI.Tabs"
+                  xmlns:xNamespace="http://schemas.microsoft.com/winfx/2006/xaml"
+                  xmlns:s="clr-namespace:Content.Client.Stylesheets">
+    <BoxContainer Orientation="Vertical">
+        <BoxContainer Orientation="Vertical" Margin="8 8 8 8" VerticalExpand="True">
+            <Label Text="{Loc 'ui-options-general-forknotice'}"
+                   FontColorOverride="{xNamespace:Static s:StyleNano.ConcerningOrangeFore}"
+                   StyleClasses="LabelKeyText"/>
+            <Label Text="{Loc 'ui-options-general-accessibility'}"
+                   FontColorOverride="{xNamespace:Static s:StyleNano.NanoGold}"
+                   StyleClasses="LabelKeyText"/>
+            <CheckBox Name="DisableFiltersCheckBox" Text="{Loc 'ui-options-no-filters'}" />
+        </BoxContainer>
+        <controls:StripeBack HasBottomEdge="False" HasMargins="False">
+            <Button Name="ApplyButton"
+                    Text="{Loc 'ui-options-apply'}"
+                    TextAlign="Center"
+                    HorizontalAlignment="Right" />
+        </controls:StripeBack>
+    </BoxContainer>
+</tabs:DeltaTab>
diff --git a/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs b/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs
new file mode 100644
index 000000000000..b83e4cd3fa15
--- /dev/null
+++ b/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs
@@ -0,0 +1,46 @@
+using Content.Shared._DV.CCVars;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Configuration;
+
+namespace Content.Client._DV.Options.UI.Tabs;
+
+[GenerateTypedNameReferences]
+public sealed partial class DeltaTab : Control
+{
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+
+    public DeltaTab()
+    {
+        RobustXamlLoader.Load(this);
+        IoCManager.InjectDependencies(this);
+
+        DisableFiltersCheckBox.OnToggled += OnCheckBoxToggled;
+        DisableFiltersCheckBox.Pressed = _cfg.GetCVar(DCCVars.NoVisionFilters);
+
+        ApplyButton.OnPressed += OnApplyButtonPressed;
+        UpdateApplyButton();
+    }
+
+    private void OnCheckBoxToggled(BaseButton.ButtonToggledEventArgs args)
+    {
+        UpdateApplyButton();
+    }
+
+    private void OnApplyButtonPressed(BaseButton.ButtonEventArgs args)
+    {
+        _cfg.SetCVar(DCCVars.NoVisionFilters, DisableFiltersCheckBox.Pressed);
+
+        _cfg.SaveToFile();
+        UpdateApplyButton();
+    }
+
+    private void UpdateApplyButton()
+    {
+        var isNoVisionFiltersSame = DisableFiltersCheckBox.Pressed == _cfg.GetCVar(DCCVars.NoVisionFilters);
+
+        ApplyButton.Disabled = isNoVisionFiltersSame;
+    }
+}
diff --git a/Content.Client/_DV/Overlays/UltraVisionOverlay.cs b/Content.Client/_DV/Overlays/UltraVisionOverlay.cs
new file mode 100644
index 000000000000..63ee769149cf
--- /dev/null
+++ b/Content.Client/_DV/Overlays/UltraVisionOverlay.cs
@@ -0,0 +1,52 @@
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+using Robust.Shared.Enums;
+using Robust.Shared.Prototypes;
+using Content.Shared.Abilities;
+using System.Numerics;
+
+namespace Content.Client._DV.Overlays;
+
+public sealed partial class UltraVisionOverlay : Overlay
+{
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+    [Dependency] private readonly IPlayerManager _playerManager = default!;
+    [Dependency] IEntityManager _entityManager = default!;
+
+
+    public override bool RequestScreenTexture => true;
+    public override OverlaySpace Space => OverlaySpace.WorldSpace;
+    private readonly ShaderInstance _ultraVisionShader;
+
+    public UltraVisionOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+        _ultraVisionShader = _prototypeManager.Index<ShaderPrototype>("UltraVision").Instance().Duplicate();
+    }
+
+    protected override bool BeforeDraw(in OverlayDrawArgs args)
+    {
+        if (_playerManager.LocalEntity is not { Valid: true } player
+            || !_entityManager.HasComponent<UltraVisionComponent>(player))
+        {
+            return false;
+        }
+
+        return base.BeforeDraw(in args);
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        if (ScreenTexture is null)
+            return;
+
+        _ultraVisionShader.SetParameter("SCREEN_TEXTURE", ScreenTexture);
+
+        var worldHandle = args.WorldHandle;
+        var viewport = args.WorldBounds;
+        worldHandle.SetTransform(Matrix3x2.Identity);
+        worldHandle.UseShader(_ultraVisionShader);
+        worldHandle.DrawRect(viewport, Color.White);
+        worldHandle.UseShader(null); // important - as of writing, construction overlay breaks without this
+    }
+}
diff --git a/Content.Client/_DV/Overlays/UltraVisionSystem.cs b/Content.Client/_DV/Overlays/UltraVisionSystem.cs
new file mode 100644
index 000000000000..d576d24b7b6b
--- /dev/null
+++ b/Content.Client/_DV/Overlays/UltraVisionSystem.cs
@@ -0,0 +1,61 @@
+using Content.Shared.Abilities;
+using Content.Shared._DV.CCVars;
+using Robust.Client.Graphics;
+using Robust.Shared.Configuration;
+using Robust.Shared.Player;
+
+namespace Content.Client._DV.Overlays;
+
+public sealed partial class UltraVisionSystem : EntitySystem
+{
+    [Dependency] private readonly IOverlayManager _overlayMan = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+    [Dependency] private readonly ISharedPlayerManager _playerMan = default!;
+
+    private UltraVisionOverlay _overlay = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<UltraVisionComponent, ComponentInit>(OnUltraVisionInit);
+        SubscribeLocalEvent<UltraVisionComponent, ComponentShutdown>(OnUltraVisionShutdown);
+        SubscribeLocalEvent<UltraVisionComponent, LocalPlayerAttachedEvent>(OnPlayerAttached);
+        SubscribeLocalEvent<UltraVisionComponent, LocalPlayerDetachedEvent>(OnPlayerDetached);
+
+        Subs.CVar(_cfg, DCCVars.NoVisionFilters, OnNoVisionFiltersChanged);
+
+        _overlay = new();
+    }
+
+    private void OnUltraVisionInit(EntityUid uid, UltraVisionComponent component, ComponentInit args)
+    {
+        if (uid == _playerMan.LocalEntity && !_cfg.GetCVar(DCCVars.NoVisionFilters))
+            _overlayMan.AddOverlay(_overlay);
+    }
+
+    private void OnUltraVisionShutdown(EntityUid uid, UltraVisionComponent component, ComponentShutdown args)
+    {
+        if (uid == _playerMan.LocalEntity)
+            _overlayMan.RemoveOverlay(_overlay);
+    }
+
+    private void OnPlayerAttached(EntityUid uid, UltraVisionComponent component, LocalPlayerAttachedEvent args)
+    {
+        if (!_cfg.GetCVar(DCCVars.NoVisionFilters))
+            _overlayMan.AddOverlay(_overlay);
+    }
+
+    private void OnPlayerDetached(EntityUid uid, UltraVisionComponent component, LocalPlayerDetachedEvent args)
+    {
+        _overlayMan.RemoveOverlay(_overlay);
+    }
+
+    private void OnNoVisionFiltersChanged(bool enabled)
+    {
+        if (enabled)
+            _overlayMan.RemoveOverlay(_overlay);
+        else
+            _overlayMan.AddOverlay(_overlay);
+    }
+}
diff --git a/Content.Client/_Nyanotrasen/Overlays/DogVisionOverlay.cs b/Content.Client/_Nyanotrasen/Overlays/DogVisionOverlay.cs
new file mode 100644
index 000000000000..9ee69ff063c6
--- /dev/null
+++ b/Content.Client/_Nyanotrasen/Overlays/DogVisionOverlay.cs
@@ -0,0 +1,52 @@
+using System.Numerics;
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+using Robust.Shared.Enums;
+using Robust.Shared.Prototypes;
+using Content.Shared.Abilities;
+
+namespace Content.Client._Nyanotrasen.Overlays;
+
+public sealed partial class DogVisionOverlay : Overlay
+{
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+    [Dependency] private readonly IPlayerManager _playerManager = default!;
+    [Dependency] IEntityManager _entityManager = default!;
+
+
+    public override bool RequestScreenTexture => true;
+    public override OverlaySpace Space => OverlaySpace.WorldSpace;
+    private readonly ShaderInstance _dogVisionShader;
+
+    public DogVisionOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+        _dogVisionShader = _prototypeManager.Index<ShaderPrototype>("DogVision").Instance().Duplicate();
+    }
+
+    protected override bool BeforeDraw(in OverlayDrawArgs args)
+    {
+        if (_playerManager.LocalEntity is not { Valid: true } player
+            || !_entityManager.HasComponent<DogVisionComponent>(player))
+        {
+            return false;
+        }
+
+        return base.BeforeDraw(in args);
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        if (ScreenTexture is null)
+            return;
+
+        _dogVisionShader.SetParameter("SCREEN_TEXTURE", ScreenTexture);
+
+        var worldHandle = args.WorldHandle;
+        var viewport = args.WorldBounds;
+        worldHandle.SetTransform(Matrix3x2.Identity);
+        worldHandle.UseShader(_dogVisionShader);
+        worldHandle.DrawRect(viewport, Color.White);
+        worldHandle.UseShader(null); // important - as of writing, construction overlay breaks without this
+    }
+}
diff --git a/Content.Client/_Nyanotrasen/Overlays/DogVisionSystem.cs b/Content.Client/_Nyanotrasen/Overlays/DogVisionSystem.cs
new file mode 100644
index 000000000000..3b18720fff07
--- /dev/null
+++ b/Content.Client/_Nyanotrasen/Overlays/DogVisionSystem.cs
@@ -0,0 +1,61 @@
+using Content.Shared.Abilities;
+using Content.Shared._DV.CCVars;
+using Robust.Client.Graphics;
+using Robust.Shared.Configuration;
+using Robust.Shared.Player;
+
+namespace Content.Client._Nyanotrasen.Overlays;
+
+public sealed partial class DogVisionSystem : EntitySystem
+{
+    [Dependency] private readonly IOverlayManager _overlayMan = default!;
+    [Dependency] private readonly IConfigurationManager _cfg = default!;
+    [Dependency] private readonly ISharedPlayerManager _playerMan = default!;
+
+    private DogVisionOverlay _overlay = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<DogVisionComponent, ComponentInit>(OnDogVisionInit);
+        SubscribeLocalEvent<DogVisionComponent, ComponentShutdown>(OnDogVisionShutdown);
+        SubscribeLocalEvent<DogVisionComponent, LocalPlayerAttachedEvent>(OnPlayerAttached);
+        SubscribeLocalEvent<DogVisionComponent, LocalPlayerDetachedEvent>(OnPlayerDetached);
+
+        Subs.CVar(_cfg, DCCVars.NoVisionFilters, OnNoVisionFiltersChanged);
+
+        _overlay = new();
+    }
+
+    private void OnDogVisionInit(EntityUid uid, DogVisionComponent component, ComponentInit args)
+    {
+        if (uid == _playerMan.LocalEntity && !_cfg.GetCVar(DCCVars.NoVisionFilters))
+            _overlayMan.AddOverlay(_overlay);
+    }
+
+    private void OnDogVisionShutdown(EntityUid uid, DogVisionComponent component, ComponentShutdown args)
+    {
+        if (uid == _playerMan.LocalEntity)
+            _overlayMan.RemoveOverlay(_overlay);
+    }
+
+    private void OnPlayerAttached(EntityUid uid, DogVisionComponent component, LocalPlayerAttachedEvent args)
+    {
+        if (!_cfg.GetCVar(DCCVars.NoVisionFilters))
+            _overlayMan.AddOverlay(_overlay);
+    }
+
+    private void OnPlayerDetached(EntityUid uid, DogVisionComponent component, LocalPlayerDetachedEvent args)
+    {
+        _overlayMan.RemoveOverlay(_overlay);
+    }
+
+    private void OnNoVisionFiltersChanged(bool enabled)
+    {
+        if (enabled)
+            _overlayMan.RemoveOverlay(_overlay);
+        else
+            _overlayMan.AddOverlay(_overlay);
+    }
+}
diff --git a/Content.Shared/_DV/Abilities/UltraVisionComponent.cs b/Content.Shared/_DV/Abilities/UltraVisionComponent.cs
new file mode 100644
index 000000000000..5f631c54f252
--- /dev/null
+++ b/Content.Shared/_DV/Abilities/UltraVisionComponent.cs
@@ -0,0 +1,8 @@
+using Robust.Shared.GameStates;
+namespace Content.Shared.Abilities;
+
+[RegisterComponent]
+[NetworkedComponent]
+
+public sealed partial class UltraVisionComponent : Component
+{}
diff --git a/Content.Shared/_DV/CCVars/DCCVars.cs b/Content.Shared/_DV/CCVars/DCCVars.cs
index 2ae5d8389d5d..fe5d53b8aa3b 100644
--- a/Content.Shared/_DV/CCVars/DCCVars.cs
+++ b/Content.Shared/_DV/CCVars/DCCVars.cs
@@ -117,4 +117,9 @@ public sealed class DCCVars
     public static readonly CVarDef<int> MailLargeMalus =
         CVarDef.Create("mail.largemalus", -250, CVar.SERVERONLY);
 
+    /// <summary>
+    /// Disables all vision filters for species like Vulpkanin or Harpies. There are good reasons someone might want to disable these.
+    /// </summary>
+    public static readonly CVarDef<bool> NoVisionFilters =
+        CVarDef.Create("accessibility.no_vision_filters", true, CVar.CLIENTONLY | CVar.ARCHIVE);
 }
diff --git a/Content.Shared/_Nyanotrasen/Abilities/DogVisionComponent.cs b/Content.Shared/_Nyanotrasen/Abilities/DogVisionComponent.cs
new file mode 100644
index 000000000000..05867aff721b
--- /dev/null
+++ b/Content.Shared/_Nyanotrasen/Abilities/DogVisionComponent.cs
@@ -0,0 +1,10 @@
+using Robust.Shared.GameStates;
+
+namespace Content.Shared.Abilities
+{
+    [RegisterComponent]
+    [NetworkedComponent]
+
+    public sealed partial class DogVisionComponent : Component
+    {}
+}
diff --git a/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl b/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl
new file mode 100644
index 000000000000..aa491ed1f6d4
--- /dev/null
+++ b/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl
@@ -0,0 +1,4 @@
+ui-options-tab-extra = Extra
+ui-options-general-forknotice = Note: These settings are fork-specific and might not apply on other servers.
+
+ui-options-no-filters = Disable species vision filters
diff --git a/Resources/Locale/en-US/_DV/traits/traits.ftl b/Resources/Locale/en-US/_DV/traits/traits.ftl
index 9a5cb6f3f431..303e130b4c68 100644
--- a/Resources/Locale/en-US/_DV/traits/traits.ftl
+++ b/Resources/Locale/en-US/_DV/traits/traits.ftl
@@ -24,3 +24,13 @@ trait-estradiol-sensitive-desc = Your body is capable of taking on Nanotrasen's
 
 trait-testosterone-sensitive-name = Testosterone sensitive
 trait-testosterone-sensitive-desc = Your body is capable of taking on Nanotrasen's special masculinization medicines.
+
+# impstation edit - removing mentions of unimplemented species
+
+trait-ultravision-name = Ultraviolet vision
+trait-ultravision-desc = Whether through custom bionic eyes, random mutation,
+                         or something else, you perceive the world with ultraviolet light.
+
+trait-deuteranopia-name = Deuteranopia
+trait-deuteranopia-desc = Whether through custom bionic eyes, random mutation,
+                          or something else, you have red-green colour blindness.
diff --git a/Resources/Prototypes/_DV/Shaders/birdvision.yml b/Resources/Prototypes/_DV/Shaders/birdvision.yml
new file mode 100644
index 000000000000..e6d2f2fa7b89
--- /dev/null
+++ b/Resources/Prototypes/_DV/Shaders/birdvision.yml
@@ -0,0 +1,4 @@
+- type: shader
+  id: UltraVision
+  kind: source
+  path: "/Textures/_DV/Shaders/ultravision.swsl"
diff --git a/Resources/Prototypes/_DV/Traits/disabilities.yml b/Resources/Prototypes/_DV/Traits/disabilities.yml
new file mode 100644
index 000000000000..3d416797e157
--- /dev/null
+++ b/Resources/Prototypes/_DV/Traits/disabilities.yml
@@ -0,0 +1,15 @@
+- type: trait
+  id: UltraVision
+  name: trait-ultravision-name
+  description: trait-ultravision-desc
+  category: Disabilities
+  components:
+    - type: UltraVision
+
+- type: trait
+  id: DogVision
+  name: trait-deuteranopia-name
+  description: trait-deuteranopia-desc
+  category: Disabilities
+  components:
+    - type: DogVision
diff --git a/Resources/Prototypes/_Nyanotrasen/Shaders/dogvision.yml b/Resources/Prototypes/_Nyanotrasen/Shaders/dogvision.yml
new file mode 100644
index 000000000000..5a34b44c9383
--- /dev/null
+++ b/Resources/Prototypes/_Nyanotrasen/Shaders/dogvision.yml
@@ -0,0 +1,4 @@
+- type: shader
+  id: DogVision
+  kind: source
+  path: "/Textures/_Nyanotrasen/Shaders/dogvision.swsl"
diff --git a/Resources/Textures/_DV/Shaders/ultravision.swsl b/Resources/Textures/_DV/Shaders/ultravision.swsl
new file mode 100644
index 000000000000..a0dccaf24594
--- /dev/null
+++ b/Resources/Textures/_DV/Shaders/ultravision.swsl
@@ -0,0 +1,14 @@
+uniform sampler2D SCREEN_TEXTURE;
+
+void fragment() {
+    highp vec4 color = zTextureSpec(SCREEN_TEXTURE, UV);
+
+    highp mat3 m = mat3(
+        vec3(0.000,1.000,0.000),
+        vec3(0.000,0.000,1.000),
+        vec3(-0.165,0.165,1.000)
+    );
+    highp vec3 result = color.rgb * m;
+
+    COLOR = vec4(result, 1);
+}
diff --git a/Resources/Textures/_Nyanotrasen/Shaders/dogvision.swsl b/Resources/Textures/_Nyanotrasen/Shaders/dogvision.swsl
new file mode 100644
index 000000000000..1e8c7d2ed355
--- /dev/null
+++ b/Resources/Textures/_Nyanotrasen/Shaders/dogvision.swsl
@@ -0,0 +1,14 @@
+uniform sampler2D SCREEN_TEXTURE;
+
+void fragment() {
+    highp vec4 color = zTextureSpec(SCREEN_TEXTURE, UV);
+
+    highp mat3 m = mat3(
+        vec3(0.625,0.375,0.000),
+        vec3(0.700,0.300,0.000),
+        vec3(0.000,0.300,0.700)
+    );
+    highp vec3 result = color.rgb * m;
+
+    COLOR = vec4(result, 1);
+}

From f983f041dfd9e778bdf6e01da890c31f006aeeef Mon Sep 17 00:00:00 2001
From: PaigeM~ <roseliasquartz@gmail.com>
Date: Sat, 15 Feb 2025 23:20:29 -0800
Subject: [PATCH 2/4] accessibility menu tweaks

---
 Content.Client/Options/UI/OptionsMenu.xaml    |  1 -
 Content.Client/Options/UI/OptionsMenu.xaml.cs |  1 -
 .../Options/UI/Tabs/AccessibilityTab.xaml     |  1 +
 .../Options/UI/Tabs/AccessibilityTab.xaml.cs  |  2 +
 .../_DV/Options/UI/Tabs/DeltaTab.xaml         | 23 ----------
 .../_DV/Options/UI/Tabs/DeltaTab.xaml.cs      | 46 -------------------
 6 files changed, 3 insertions(+), 71 deletions(-)
 delete mode 100644 Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml
 delete mode 100644 Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs

diff --git a/Content.Client/Options/UI/OptionsMenu.xaml b/Content.Client/Options/UI/OptionsMenu.xaml
index 4a2bd194daf3..a93bc0e7a9c1 100644
--- a/Content.Client/Options/UI/OptionsMenu.xaml
+++ b/Content.Client/Options/UI/OptionsMenu.xaml
@@ -9,6 +9,5 @@
         <tabs:KeyRebindTab Name="KeyRebindTab" />
         <tabs:AudioTab Name="AudioTab" />
         <tabs:AccessibilityTab Name="AccessibilityTab" />
-        <dtabs:DeltaTab Name="ExtraTab" />
     </TabContainer>
 </DefaultWindow>
diff --git a/Content.Client/Options/UI/OptionsMenu.xaml.cs b/Content.Client/Options/UI/OptionsMenu.xaml.cs
index 53fed13ba2b0..b749d1f234d0 100644
--- a/Content.Client/Options/UI/OptionsMenu.xaml.cs
+++ b/Content.Client/Options/UI/OptionsMenu.xaml.cs
@@ -18,7 +18,6 @@ public OptionsMenu()
             Tabs.SetTabTitle(2, Loc.GetString("ui-options-tab-controls"));
             Tabs.SetTabTitle(3, Loc.GetString("ui-options-tab-audio"));
             Tabs.SetTabTitle(4, Loc.GetString("ui-options-tab-accessibility"));
-            Tabs.SetTabTitle(5, Loc.GetString("ui-options-tab-extra")); // Extra settings
 
             UpdateTabs();
         }
diff --git a/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml b/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml
index ecfaa96c7979..8d104f686037 100644
--- a/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml
+++ b/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml
@@ -8,6 +8,7 @@
                 <CheckBox Name="DisableSinguloWarpingCheckBox" Text="{Loc 'ui-options-disable-singulo-warp'}" />
                 <CheckBox Name="EnableColorNameCheckBox" Text="{Loc 'ui-options-enable-color-name'}" />
                 <CheckBox Name="ColorblindFriendlyCheckBox" Text="{Loc 'ui-options-colorblind-friendly'}" />
+                <CheckBox Name="DisableFiltersCheckBox" Text="{Loc 'ui-options-no-filters'}" />
                 <ui:OptionSlider Name="ChatWindowOpacitySlider" Title="{Loc 'ui-options-chat-window-opacity'}" />
                 <ui:OptionSlider Name="ScreenShakeIntensitySlider" Title="{Loc 'ui-options-screen-shake-intensity'}" />
                 <CheckBox Name="AutoFillHighlightsCheckBox" Text="{Loc 'ui-options-auto-fill-highlights'}" />
diff --git a/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml.cs b/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml.cs
index 0d60c68e1a68..0f8365928374 100644
--- a/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml.cs
+++ b/Content.Client/Options/UI/Tabs/AccessibilityTab.xaml.cs
@@ -1,4 +1,5 @@
 using Content.Shared._Impstation.CCVar;
+using Content.Shared._DV.CCVars;
 using Content.Shared.CCVar;
 using Robust.Client.AutoGenerated;
 using Robust.Client.UserInterface;
@@ -17,6 +18,7 @@ public AccessibilityTab()
         Control.AddOptionCheckBox(CCVars.AccessibilityColorblindFriendly, ColorblindFriendlyCheckBox);
         Control.AddOptionCheckBox(CCVars.ReducedMotion, ReducedMotionCheckBox);
         Control.AddOptionCheckBox(ImpCCVars.DisableSinguloWarping, DisableSinguloWarpingCheckBox);
+        Control.AddOptionCheckBox(DCCVars.NoVisionFilters, DisableFiltersCheckBox);
         Control.AddOptionPercentSlider(CCVars.ChatWindowOpacity, ChatWindowOpacitySlider);
         Control.AddOptionPercentSlider(CCVars.ScreenShakeIntensity, ScreenShakeIntensitySlider);
         Control.AddOptionCheckBox(ImpCCVars.ChatAutoFillHighlights, AutoFillHighlightsCheckBox);
diff --git a/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml b/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml
deleted file mode 100644
index 985e7da38651..000000000000
--- a/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml
+++ /dev/null
@@ -1,23 +0,0 @@
-<tabs:DeltaTab xmlns="https://spacestation14.io"
-                  xmlns:controls="clr-namespace:Content.Client.UserInterface.Controls"
-                  xmlns:tabs="clr-namespace:Content.Client._DV.Options.UI.Tabs"
-                  xmlns:xNamespace="http://schemas.microsoft.com/winfx/2006/xaml"
-                  xmlns:s="clr-namespace:Content.Client.Stylesheets">
-    <BoxContainer Orientation="Vertical">
-        <BoxContainer Orientation="Vertical" Margin="8 8 8 8" VerticalExpand="True">
-            <Label Text="{Loc 'ui-options-general-forknotice'}"
-                   FontColorOverride="{xNamespace:Static s:StyleNano.ConcerningOrangeFore}"
-                   StyleClasses="LabelKeyText"/>
-            <Label Text="{Loc 'ui-options-general-accessibility'}"
-                   FontColorOverride="{xNamespace:Static s:StyleNano.NanoGold}"
-                   StyleClasses="LabelKeyText"/>
-            <CheckBox Name="DisableFiltersCheckBox" Text="{Loc 'ui-options-no-filters'}" />
-        </BoxContainer>
-        <controls:StripeBack HasBottomEdge="False" HasMargins="False">
-            <Button Name="ApplyButton"
-                    Text="{Loc 'ui-options-apply'}"
-                    TextAlign="Center"
-                    HorizontalAlignment="Right" />
-        </controls:StripeBack>
-    </BoxContainer>
-</tabs:DeltaTab>
diff --git a/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs b/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs
deleted file mode 100644
index b83e4cd3fa15..000000000000
--- a/Content.Client/_DV/Options/UI/Tabs/DeltaTab.xaml.cs
+++ /dev/null
@@ -1,46 +0,0 @@
-using Content.Shared._DV.CCVars;
-using Robust.Client.AutoGenerated;
-using Robust.Client.UserInterface;
-using Robust.Client.UserInterface.Controls;
-using Robust.Client.UserInterface.XAML;
-using Robust.Shared.Configuration;
-
-namespace Content.Client._DV.Options.UI.Tabs;
-
-[GenerateTypedNameReferences]
-public sealed partial class DeltaTab : Control
-{
-    [Dependency] private readonly IConfigurationManager _cfg = default!;
-
-    public DeltaTab()
-    {
-        RobustXamlLoader.Load(this);
-        IoCManager.InjectDependencies(this);
-
-        DisableFiltersCheckBox.OnToggled += OnCheckBoxToggled;
-        DisableFiltersCheckBox.Pressed = _cfg.GetCVar(DCCVars.NoVisionFilters);
-
-        ApplyButton.OnPressed += OnApplyButtonPressed;
-        UpdateApplyButton();
-    }
-
-    private void OnCheckBoxToggled(BaseButton.ButtonToggledEventArgs args)
-    {
-        UpdateApplyButton();
-    }
-
-    private void OnApplyButtonPressed(BaseButton.ButtonEventArgs args)
-    {
-        _cfg.SetCVar(DCCVars.NoVisionFilters, DisableFiltersCheckBox.Pressed);
-
-        _cfg.SaveToFile();
-        UpdateApplyButton();
-    }
-
-    private void UpdateApplyButton()
-    {
-        var isNoVisionFiltersSame = DisableFiltersCheckBox.Pressed == _cfg.GetCVar(DCCVars.NoVisionFilters);
-
-        ApplyButton.Disabled = isNoVisionFiltersSame;
-    }
-}

From cca60f7faa2dad87fc6800ce954564de20b37031 Mon Sep 17 00:00:00 2001
From: hivehum <ketchupfaced@gmail.com>
Date: Sun, 16 Feb 2025 12:28:56 -0500
Subject: [PATCH 3/4] accessibility option disabled by default

---
 Content.Shared/_DV/CCVars/DCCVars.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Content.Shared/_DV/CCVars/DCCVars.cs b/Content.Shared/_DV/CCVars/DCCVars.cs
index fe5d53b8aa3b..a02b56c9dff6 100644
--- a/Content.Shared/_DV/CCVars/DCCVars.cs
+++ b/Content.Shared/_DV/CCVars/DCCVars.cs
@@ -121,5 +121,5 @@ public sealed class DCCVars
     /// Disables all vision filters for species like Vulpkanin or Harpies. There are good reasons someone might want to disable these.
     /// </summary>
     public static readonly CVarDef<bool> NoVisionFilters =
-        CVarDef.Create("accessibility.no_vision_filters", true, CVar.CLIENTONLY | CVar.ARCHIVE);
+        CVarDef.Create("accessibility.no_vision_filters", false, CVar.CLIENTONLY | CVar.ARCHIVE);
 }

From 55532b2de401164f3735f819af16ffaeacb7cb8e Mon Sep 17 00:00:00 2001
From: hivehum <ketchupfaced@gmail.com>
Date: Sun, 16 Feb 2025 12:39:14 -0500
Subject: [PATCH 4/4] reword since we dont have vulp or harpies

---
 Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl b/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl
index aa491ed1f6d4..ad4f3403d278 100644
--- a/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl
+++ b/Resources/Locale/en-US/_DV/escape-menu/options-menu.ftl
@@ -1,4 +1,4 @@
 ui-options-tab-extra = Extra
 ui-options-general-forknotice = Note: These settings are fork-specific and might not apply on other servers.
 
-ui-options-no-filters = Disable species vision filters
+ui-options-no-filters = Disable trait-specific shaders