Merge pull request #1068 from codecat/fix-colorbutton

ColorButton: fix showing wrong hex value for alpha in tooltip.

imgui.cpp

@@ -8973,7 +8973,7 @@ bool ImGui::ColorButton(const ImVec4& col, bool small_height, bool outline_borde
     RenderFrame(bb.Min, bb.Max, GetColorU32(col), outline_border, style.FrameRounding);
 
     if (hovered)
-        SetTooltip("Color:\n(%.2f,%.2f,%.2f,%.2f)\n#%02X%02X%02X%02X", col.x, col.y, col.z, col.w, IM_F32_TO_INT8_SAT(col.x), IM_F32_TO_INT8_SAT(col.y), IM_F32_TO_INT8_SAT(col.z), IM_F32_TO_INT8_SAT(col.z));
+        SetTooltip("Color:\n(%.2f,%.2f,%.2f,%.2f)\n#%02X%02X%02X%02X", col.x, col.y, col.z, col.w, IM_F32_TO_INT8_SAT(col.x), IM_F32_TO_INT8_SAT(col.y), IM_F32_TO_INT8_SAT(col.z), IM_F32_TO_INT8_SAT(col.w));
 
     return pressed;
 }