Lego mapping includes design ID 30413 for transparent (PC) parts.
This part also exists in Dark Azure
Click on a colored part below to see the Sets and MOCs that use part 43337 Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] in that color. You can find an overview of all LEGO Colors here.
If a color is missing, it probably needs to be added to a Set Inventory.
This part has been used by MOCs in the following colors but not officially released.