Some blips are't showing why is that? If you are using Blips from FiveM's Docs there could be a chance you are not running that game build, which is why you are not seeing the blip's show up. If I ...

To change the shader, create a texture pack with a file called menu-shader.fsh. For a few already made shaders, check out this Twitter X thread. This mod also supports some Shadertoy shaders, to use ...