Colors in UMG editor and mobile still don't match in 4.10

I’m having colors of text and backgrounds display differently in UMG editor and when deployed to Android. Basically, colors in UMG are in sRGB, but Android interprets these values as RGB, and everything has more contrast and saturation. I work around this by ignoring what color picker and UMG review display, and just entering RGB values I need, but this really bugs me.

I’ve found all these posts on the topic, but none of them help. I don’t want o go editing anything in /engine, because this is a blueprint-only project, and it hasn’t got it’s own /engine folder.

Maybe there’s some option or setting that I don’t know of somewhere in the settings?