I got bored of the conventional icons on the map in San Andreas (safehouse, restaurants, Pay'N'Sprays etc), and decided they looked a bit fugly on my screen, clearly they're designed to be seen on a TV, not a crisp LCD monitor.
Anyway, this is basically just a retexture of everything you see in the HUD except the weapons, text and actual radar image (the map). There are other mods which can convert that, which I've mentioned in the Readme. Icons were made in Inkscape then placed inside the hud.txd archive, all have been replaced except the weapons one, as it was too complicated. These are essentially conversions of the normal icons in their 32x32 designs into crisper, brighter 256x256 icons. They just generally look nicer.
Again, more info in the readme. This isn't a complicated mod to install, just replace the hud.txd file in your C:/Program Files/Rockstar Games/San Andreas/models directory (although back up the original)
By the way, there are some icons which are unused in the final game. These are still included and have been upgraded, in case they're utilised in other mods (such as the impound car becoming the Driver icon in Spaceeinstein's All-In-One Mod).
Enjoy!...