Oh yes that is the way creator of this plug-in did. I will do some research if there is a better plug-in.
These are the parameters inside ui file
Spoiler: UI CODE
Try playing with HEX color code....black is #000000
Skin_Avicsync_by_pongo_25.01.2016
Try new ux/SKIN and DATA. Still fast and more options.
Rename old UX to something just to test new one. Unzip this one to UX and upload it.
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Credits to: @Catymag
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Report back please.
I tested new skin and data all is well.
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