I cant open the dev tools menu any more and I get this error when I try to. My mod list hasn't changed since the last time I played. I also removed your mod and the menu opens again.
I hope this can be easily fixed because I love your textures.

Exception filling window for Verse.ImmediateWindow: System.TypeLoadException: Could not resolve type with token 01000010 (from typeref, class/assembly TechSales.Graphic_Collection_TechSales, TechSales 1.2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null)
at (wrapper managed-to-native) System.Reflection.MonoMethodInfo.get_method_info(intptr,System.Reflection.MonoMethodInfo&)
at System.Reflection.MonoMethodInfo.GetMethodInfo (System.IntPtr handle) [0x00000] in <567df3e0919241ba98db88bec4c6696f>:0
at System.Reflection.MonoMethod.GetPseudoCustomAttributes () [0x00002] in <567df3e0919241ba98db88bec4c6696f>:0
at System.MonoCustomAttrs.GetPseudoCustomAttributes (System.Reflection.ICustomAttributeProvider obj, System.Type attributeType) [0x0000a] in <567df3e0919241ba98db88bec4c6696f>:0
at System.MonoCustomAttrs.GetCustomAttributesBase (System.Reflection.ICustomAttributeProvider obj, System.Type attributeType, System.Boolean inheritedOnly) [0x0001f] in <567df3e0919241ba98db88bec4c6696f>:0
at System.MonoCustomAttrs.GetCustomAttributes (System.Reflection.ICustomAttributeProvider obj, System.Type attributeType, System.Boolean inherit) [0x00037] in <567df3e0919241ba98db88bec4c6696f>:0
at System.Reflection.MonoMethod.GetCustomAttributes (System.Type attributeType, System.Boolean inherit) [0x00000] in <567df3e0919241ba98db88bec4c6696f>:0
at Verse.GenAttribute.TryGetAttribute[T] (System.Reflection.MemberInfo memberInfo, T& customAttribute) [0x00000] in <7927e938de4c4089b4add4215e58d5b1>:0
at (wrapper dynamic-method) Verse.Dialog_DebugActionsMenu.Verse.Dialog_DebugActionsMenu..ctor_Patch1(Verse.Dialog_DebugActionsMenu)
at Verse.DebugWindowsOpener.ToggleDebugActionsMenu () [0x0001c] in <7927e938de4c4089b4add4215e58d5b1>:0
at (wrapper dynamic-method) Verse.DebugWindowsOpener.Verse.DebugWindowsOpener.DrawButtons_Patch0(Verse.DebugWindowsOpener)
at Verse.ImmediateWindow.DoWindowContents (UnityEngine.Rect inRect) [0x00000] in <7927e938de4c4089b4add4215e58d5b1>:0
at Verse.Window.InnerWindowOnGUI (System.Int32 x) [0x00165] in <7927e938de4c4089b4add4215e58d5b1>:0
Verse.Log:Error(String, Boolean)
Verse.Window:InnerWindowOnGUI(Int32)
UnityEngine.GUI:CallWindowDelegate(WindowFunction, Int32, Int32, GUISkin, Int32, Single, Single, GUIStyle)