BABYLON.GUI.TextBlock set alpha separately

Questions
1

Hello, I made GUI label with BABYLON.GUI.Rectangle and TextBlock.
I want set alpha value 0.6 to rectangle and 1 to text block separately.
but it seems alpha linked with rectangle and text block (follow rectangle’s alpha)

is it possible?
PG is here
https://playground.babylonjs.com/#V7X12E

2

You cannot directly because transparency is inherited BUT you can just add a new rectangle to render the background;)
https://playground.babylonjs.com/#V7X12E#1

Other option: use rgba to render the background of the main rect: https://playground.babylonjs.com/#V7X12E#2

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