Finally I did my first overlay for RA. It’s GB portrait only with animated buttoms. I worked with RetroPad Editor but couldn’t animate buttoms so I used Fercho’s one and after few tweeks it works great. I made this for my iPhone13 mini.
If you like I can put link here.
Now I need to make overlay for GameBoy Color
That looks really great. I’d love a link if you don’t mind sharing 
The screen looks nice. I can never get my gameboy shaders looking like I want them, so good job.
Here’s latest version. But I need to mention few things. First of all I’m graphic designer, not a programmer so my skills are limited…yet That’s why this overlay has some flaws.
For example, when you touch phone screen, vibrations are all over, not only on the buttoms.
This was made on Fercho’s one so I swap his graphic’s elements.
But when I made my version, I could’t make anitmated buttoms and touching area was on spot, only where buttoms where placed. ( I’ve got that version too)
Shader shown on picture is not attached to this overlay. You need to add it separately (Shaders / Handheld / Concole-border / dmg.slang)
Black bar on top should make place for notch. I wanted to make this place integral with graphic.
It looks good when you enable fullscreen over notch.
Also, the cross is not from original DMG, but I like much arrows inside of it Maybe someday I will make original one.
Menu buttom is on the left up corner / Power switch.
Anyway, like I said before, I prefer to make graphics than programming stuff. If there is someone who can help I can support with making graphic elements.
Now I will work on GBC Overlay but there is one problem I’m stuck with but I will write about it later.
https://drive.google.com/drive/folders/1yM_FJoccKzpbNOt1OjbCgmyfRtO42ZMM?usp=sharing
About GBC overlay. I would love to make one with shader: handheld / gameboy-color-dot-matrix-white-bg.slangp The problem is when I choose it it shows with pink frame and doubled screen all over:
I messed up with Video scale parameters and achived this:But the background should be white/frame.
Secound problem I’ve got is that I can not lower the image. Now image in placed on the upper side of the screen. Weird thing is that I did set previous shader for DMC without any problems. It was Video / scaling / Custom. Position was applyed well but I couldn’t scale down the image. I know that shader itself has video scale option but I wanted scale down the image just a little bit, not like 3x, 5x 6x etc. Is there any chance to figure this out?
Link below, few comments down
Buttons usually animated with simple hack. There is no reliable way for image to “appear” on click, but with alpha_mod=0.001 parameter we can make it disappear and reveal “pressed state” image under it (like making upper layer transparent in image editor).
To prevent vibrating set overlayXX_descYY_reach_x = 0 (or just reach_x = 0 in editor) for every non-button element.
Now it works great, thanks
My next problem to solve is change screen position when shader: gameboy-color-dot-matrix-white-bg.slangp is on 
( I’ve mentioned it above)
