RenderColorRectWithAlphaCheckerboard() in one layer to shunt out anti-alasing artefacts when rounded. Added ImLerp(int,int,float). (#346)

ColorButton, ColorPicker: painfully made RenderColorRectWithAlphaCheckerboard more friendly to using Rounding and Border in style, still not perfect :( (#346) + comments

ColorEdit, ColorPicker, ColorButton: Display grid under transparent colors (WIP) (#346)

ColorPicker,ColorButton: Honor Border/Shadow style settings (#346)

ColorPicker: new prototype for ColorButton() .Added _NoTooltip, _NoLabel flags. Changing _Alpha flag to _NoAlpha makes so much much sense and allow to revert default parameters to zero. ColorEdit4/Picker4 don't attempt to read/write fourth component, making ColorEdit3/Picker3 shorter/faster. Tooltip and Picker called from ColorEdit can have a title. Picker shows colored square. Moved ColorTooltip() to imgui_internal.h (#346)

Merge branch 'master' into 2016-02-colorpicker

Tooltip: SetTooltip() is expanded immediately into a window, honoring current font / styling setting. Add internal mechanism to override tooltips (not exposed in BeginTooltip yet because bools are evil) (#862)

Internals: renaming IndexWithinParent to OrderWithinParent

Merge branch 'master' into 2016-02-colorpicker

Version 1.51 WIP tag

Version 1.50

Merge branch 'master' into 2016-02-colorpicker

Internal: Renamed ImLoadFileToMemory to ImFileLoadToMemory to be consistent with ImFileOpen + fix mismatching .h name (#917)

Merge branch 'master' into 2016-02-colorpicker

Added an explicit (internal) ClearActiveID() helper and removed the default NULL window parameter to internal SetActiveID(),

Merge branch 'master' into 2016-02-colorpicker

Using _wfopen() under Windows+MSVC because fopen() doesn't support UTF-8 encoding. Wrapped as ImFileOpen(). (#917)

Began improvements to columns API by splitting the Columns() function into BeginColumns() and EndColumns() and adding additional flags. The columns data still needs to be placed into a stack.

Fixed uninitialized variables (wouldn't have a real effect because they'd be cleared in Begin()).

Support for #define-ing GImGui and IMGUI_SET_CURRENT_CONTEXT_FUNC to enable custom thread-based hackery (#586)

Merge branch 'master' into 2016-02-colorpicker

Added ImGuiCorner enum to clarify some internal code

Removed the inconsistent shadow under RenderCollapseTriangle() (~#707)

Merge remote-tracking branch 'origin' into 2016-02-colorpicker

Fix using IsItemActive() after EndGroup() or any widget using groups (#840, #479)

Merge remote-tracking branch 'origin' into 2016-02-colorpicker

Style: Added ButtonTextAlign, ImGuiStyleVar_ButtonTextAlign (#842)

Refactor text alignment options to use ImVec2, removed ImGuiAlign (#842, #222)

Internal RenderTextClipped() merged optional/rate clip_min* clip_max* into clip_rect*

Refactor PushStyleVar/PopStyleVar so it is constant time + can receive integers (yet unused) (#842)