Slider and transparent textBoxBackground issue

[lalala]

When the slider's textBox is being edited its background can't have any transparency.
to reproduce just add that in the widgetsDemo in SlidersPage::createSlider() :

s->setColour (Slider::textBoxBackgroundColourId, Colours::transparentBlack);

and then try to edit the first slider's value.

Am I missing something?
 

[jules]

Label::backgroundWhenEditingColourId ?

[lalala]

oh, thanks!