# scrim
Wayland full-screen color overlay. Pure RGBA canvas with file interface.
## Install
```bash
cargo install scrim
```
or
```bash
git clone https://github.com/fajknli/scrim
cd scrim
cargo build --release
cp target/release/scrim ~/.local/bin/
```
## Control Files
All files live in `/tmp/scrim/`, created on startup, cleaned on exit.
| `/tmp/scrim/r` | u8 | 0–255 | Red channel |
| `/tmp/scrim/g` | u8 | 0–255 | Green channel |
| `/tmp/scrim/b` | u8 | 0–255 | Blue channel |
| `/tmp/scrim/alpha` | u8 | 0–255 | Opacity (0 = transparent, 255 = solid) |
| `/tmp/scrim/fade` | str | `target duration_ms` | Fade alpha to target over duration |