SL-18573 Fix for HUD text being wrong color.

indra/newview/llhudtext.cpp

@@ -224,6 +224,10 @@ void LLHUDText::renderText()
 			}
 
 			text_color = segment_iter->mColor;
+            if (mOnHUDAttachment)
+            {
+                text_color = linearColor4(text_color);
+            }
 			text_color.mV[VALPHA] *= alpha_factor;
 
 			hud_render_text(segment_iter->getText(), render_position, *fontp, style, shadow, x_offset, y_offset, text_color, mOnHUDAttachment);