Color swatches in Blueprints (linear color or color) should be drawn like the details panels does, to indicate alpha values

UE - Gameplay - Blueprint - Apr 27, 2015

When assigning a Linear Color Value to a Color Input or Linear Color Variable from a Make Linear Color Node, the Alpha Value is reset to a value of 0 when node is disconnected. Also Confirmed in Ma ...

Color Information Clamped to a Max of 1 in Cascade Color Modules

UE - Rendering - Dec 3, 2014

You cannot enter a value higher than one in any color module. WORKAROUND - You can graph it and select the point you want to change and then set value to any number, but it will be clamped back to ...

Set members in Slate Color for the foreground color of a combo box does not appear to change the color of the selected text

UE - Editor - UI Systems - Mar 14, 2018

When setting the foreground color through blueprints at run time for a combo box it does not appear to affect the the selected item text. ...

Paper 2D Sprites rendering incorrect Color

UE - Gameplay - Paper2D - Jun 11, 2015

The Vertex (Sprite) Color is rendering a higher value than the color picker has set. In 4.7.6 this is consistent for Materials as well, but in 4.8 and 4.9 only the Paper2D elements are rendering at ...

Can't Play in Editor After selecting a color for a border widget via the eye dropper

Tools - Jul 28, 2016

Can't Play in Editor After selecting a color for a border widget via the eye dropper. If the user selects a color with the eye dropper tool and this color is outside of the color picker window, they ...

When binding Color and Opacity setting for a text block, linear colors can not be used

UE - Editor - UI Systems - Nov 19, 2014

If a user binds the color and opacity settings for a UMG text block they cannot use linear colors directly. They must convert them in to slate colors. When changing the pin on the return node to acc ...

Painted Vertex Colors not Passing Color when used with Emissive for Static Lighting Setting

UE - Rendering - May 24, 2016

When painting Vertex Colors on a mesh, and enabling the 'Emissive for Static Lighting' option, the painted colors are not passed to surfaces receiving the emissive static lighting. The regular emis ...

When editing a color curve at the emitter level color is not updated correctly at system level

UE - Rendering - Niagara - May 6, 2019

Editing color curves at the emitter level will not propagate to the system level when saving and applying. The curve will look correct int the system stack, but the particle colors will not match. ...

UMG Widget color and Text color has different output at UE4 editor to Mobile preview and Mobile device.

UE - Editor - UI Systems - Jul 3, 2015

UMG Widget color and Text color has different color output at UE4 editor to Mobile preview and Mobile device. https://udn.unrealengine.com/questions/251945/umg-viewport-device%E1%84%8B%E1%85%A6%E1% ...

Color obtained in Retainer Box differs from color visible in material preview when set by Vector Parameter

UE - Rendering - Aug 12, 2019

Color set by Vector Parameters in a material differs in preview from color obtained in retainer box. Obtained color does not match either sRGB or Linear values of color visible in material preview. ...