Background Transitions: Flat
Resource PackAdds transitions between images in main menu and sets full image in options. It doesn't stretch images!
Core ShadersGUISimplisticTweaks
1,502 downloads
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This pack works like Background Transitions but makes it as overlay + image option background. Scalable with no stretchings. Inspired by CustomOptionsMenu.
Optifine not required. #noptifine Probably works in 1.17 and later.
Has same configuration as Background Transitions.
∟But there is also HEIGHT in both shader/core/position_tex_color that determines height of one slide to show.
To make it work with you images, place 254 alpha on upper left pixel on images.
Images done by Mojang (Microsoft). Non-commercial use is allowed I think.
Wanted bugs.
