Fixed stray end of line blanks, added comments in .editorconfig, tweaked some headers.

.editorconfig

@@ -1,4 +1,6 @@
-# editorconfig.org
+# See http://editorconfig.org to read about the EditorConfig format.
+# - Automatically supported by VS2017+ and most common IDE or text editors.
+# - For older VS2010 to VS2015, install https://marketplace.visualstudio.com/items?itemName=EditorConfigTeam.EditorConfig
 
 # top-most EditorConfig file
 root = true

imgui.cpp

@@ -4152,7 +4152,7 @@ void ImGui::EndFrame()
 {
     ImGuiContext& g = *GImGui;
     IM_ASSERT(g.Initialized);
-    
+
     // Don't process EndFrame() multiple times.
     if (g.FrameCountEnded == g.FrameCount)
         return;

imgui.h

@@ -1141,7 +1141,7 @@ enum ImGuiCol_
 };
 
 // Enumeration for PushStyleVar() / PopStyleVar() to temporarily modify the ImGuiStyle structure.
-// - The enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code. 
+// - The enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code.
 //   During initialization or between frames, feel free to just poke into ImGuiStyle directly.
 // - Tip: Use your programming IDE navigation facilities on the names in the _second column_ below to find the actual members and their description.
 //   In Visual Studio IDE: CTRL+comma ("Edit.NavigateTo") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.

imgui_widgets.cpp

@@ -5344,8 +5344,8 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
     // - Double-click on label = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1)
     // - Double-click on arrow = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1 and _OpenOnArrow=0)
     // This makes _OpenOnArrow have a subtle effect on _OpenOnDoubleClick: arrow click reacts on Down rather than Up.
-    // It is rather standard that arrow click react on Down rather than Up and we'd be tempted to make it the default 
-    // (by removing the _OpenOnArrow test below), however this would have a perhaps surprising effect on CollapsingHeader()? 
+    // It is rather standard that arrow click react on Down rather than Up and we'd be tempted to make it the default
+    // (by removing the _OpenOnArrow test below), however this would have a perhaps surprising effect on CollapsingHeader()?
     // So right now we are making this optional. May evolve later.
     if (is_mouse_x_over_arrow && (flags & ImGuiTreeNodeFlags_OpenOnArrow))
         button_flags |= ImGuiButtonFlags_PressedOnClick;
@@ -5948,7 +5948,7 @@ int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_get
     if (label_size.x > 0.0f)
         RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, inner_bb.Min.y), label);
 
-    // Return hovered index or -1 if none are hovered. 
+    // Return hovered index or -1 if none are hovered.
     // This is currently not exposed in the public API because we need a larger redesign of the whole thing, but in the short-term we are making it available in PlotEx().
     return idx_hovered;
 }

misc/cpp/imgui_stdlib.cpp

@@ -1,5 +1,4 @@
-// imgui_stdlib.cpp
-// Wrappers for C++ standard library (STL) types (std::string, etc.)
+// dear imgui: wrappers for C++ standard library (STL) types (std::string, etc.)
 // This is also an example of how you may wrap your own similar types.
 
 // Compatibility:

misc/cpp/imgui_stdlib.h

@@ -1,5 +1,4 @@
-// imgui_stdlib.h
-// Wrappers for C++ standard library (STL) types (std::string, etc.)
+// dear imgui: wrappers for C++ standard library (STL) types (std::string, etc.)
 // This is also an example of how you may wrap your own similar types.
 
 // Compatibility:

misc/freetype/imgui_freetype.cpp

@@ -1,4 +1,4 @@
-// Wrapper to use FreeType (instead of stb_truetype) for Dear ImGui
+// dear imgui: wrapper to use FreeType (instead of stb_truetype)
 // Get latest version at https://github.com/ocornut/imgui/tree/master/misc/freetype
 // Original code by @vuhdo (Aleksei Skriabin). Improvements by @mikesart. Maintained and v0.60+ by @ocornut.
 

misc/freetype/imgui_freetype.h

@@ -1,4 +1,4 @@
-// Wrapper to use FreeType (instead of stb_truetype) for Dear ImGui
+// dear imgui: wrapper to use FreeType (instead of stb_truetype)
 // Get latest version at https://github.com/ocornut/imgui/tree/master/misc/freetype
 // Original code by @Vuhdo (Aleksei Skriabin), maintained by @ocornut
 

misc/single_file/imgui_single_file.h

@@ -1,4 +1,4 @@
-// imgui_single_file.h
+// dear imgui: single-file wrapper include
 // We use this to validate compiling all *.cpp files in a same compilation unit.
 // Users of that technique (also called "Unity builds") can generally provide this themselves,
 // so we don't really recommend you use this in your projects.