Others like myself have wished for a TFT file for the 3.5" Nextion screen that fills the whole space. While there are a few out there, they don't mirror the "original" format that we know and love (CEC version).?
This is a work in progress though it seems to work well enough to share for further tweaking.? I'm no programmer per se though by using some graphic arts thinking, I've put together the attached. There are a few little errors here and there, so, if you know more than I do or have learned something I've not fell over yet, please feel free to add corrections or tell me how to correct it.? For instance: on the page for recalling a memory entry to VFO, there is a button that should say, "READ" (top row, left of the Frequency mask). The active button is there but it's behind the background fill picture, and needs to be brought to the foreground.
This started as the widely-available "3.5" screen file that doesn't fill a 3.5" screen, and was manually increased by 150% on the horizontal axis and by 133.3" on the vertical, picture by picture and block by block, with things shifted around for spacing and fit - and the font sizes increased in most cases.? It pays to be anal-retentive and O.C.D. just sometimes.
Have fun!
Ted
K3RTA
Ted