Fonts: internals: renamed g.FontSizeBeforeScaling to g.FontSizeBase for consistency.

# Conflicts:
#	imgui_internal.h

imgui.h

@@ -2227,9 +2227,10 @@ IM_MSVC_RUNTIME_CHECKS_RESTORE
 
 struct ImGuiStyle
 {
-    float       FontSizeBase;               // Current base font size before external scaling factors are applied. Use PushFont()/PushFontSize() to modify. Use ImGui::GetFontSize() to obtain scaled value. Final FontSize = FontSizeBase * (FontScaleBase * FontScaleDpi * other_factors)
+    // ImGui::GetFontSize() == FontSizeBase * (FontScaleMain * FontScaleDpi * other_scaling_factors)
+    float       FontSizeBase;               // Current base font size before external scaling factors are applied. Use PushFont()/PushFontSize() to modify. Use ImGui::GetFontSize() to obtain scaled value.
     float       FontScaleMain;              // Main scale factor. May be set by application once, or exposed to end-user.
-    float       FontScaleDpi;               // Scale factor from viewport/monitor contents scale. When io.ConfigDpiScaleFonts is enabled, this is automatically overwritten when changing monitor.
+    float       FontScaleDpi;               // Additional scale factor from viewport/monitor contents scale. When io.ConfigDpiScaleFonts is enabled, this is automatically overwritten when changing monitor DPI.
 
     float       Alpha;                      // Global alpha applies to everything in Dear ImGui.
     float       DisabledAlpha;              // Additional alpha multiplier applied by BeginDisabled(). Multiply over current value of Alpha.