MohMine 4e90a357e8
feat(themes): allow users to add theme overrides using their config file
Fixes #560

### Add theme color overrides in configuration file

Link to #560

### Problem

Currently, customizing television's appearance to match personal style
requires users to rebuild from source code to modify theme colors. This
creates a significant barrier for users who want to personalize their
experience without dealing with compilation and development setup.
Users who want to adjust colors for better readability, match their
terminal theme, or create custom color schemes must either:
- Modify theme files in the source code
- Rebuild the entire application
- Maintain separate theme files
This workflow is not user-friendly and prevents quick experimentation
with different color combinations.

### Solution
Added theme color overrides directly in the configuration file, allowing
users to customize any theme color without rebuilding from source. The
themes/*.toml files now serve as defaults, while the configuration file
provides overrides that take precedence.

### Key features:
- No rebuild required: Customize colors instantly through config
- Easy testing: Try different color combinations without compilation
- Theme flexibility: Mix and match colors from different themes
- Backward compatible: Existing configs continue to work unchanged
- User-friendly: Simple TOML syntax for color customization

### Usage Example

Find your config file location:
```
 Default locations:
   # Unix: ~/.config/television/config.toml
   # Windows: %APPDATA%\television\config.toml
```

Add theme overrides to your config:

```
[ui]
   theme = "catppuccin"  # or any other theme
   
   [ui.theme_overrides]
   background = "#000000"      # Pure black background for maximum contrast
   text_fg = "#00ff00"         # Bright green for main text (high visibility)
   selection_bg = "#ff00ff"    # Bright magenta for selected items (eye-catching)
   selection_fg = "#ffffff"    # Pure white text on selected items (high contrast)
   match_fg = "#ffff00"        # Bright yellow for search matches (stands out)
   border_fg = "#00ffff"       # Bright cyan for borders (neon effect)
   result_name_fg = "#ff8800"  # Bright orange for file names (warm highlight)
   result_value_fg = "#ff0080" # Bright pink for values (vibrant accent)
```


Test your changes:

```
# Run with your config
./target/release/tv --config-file ~/.config/television/config.toml
```

<img width="1420" alt="Screenshot 2025-07-08 at 08 14 42"
src="https://github.com/user-attachments/assets/90563f86-74aa-460a-a7c2-82080be3dc0b"
/>

---------

Co-authored-by: Mohamed-Amine Bousahih <mohamed-aminebousahih@pc-66.home>
Co-authored-by: Mohamed-Amine Bousahih <mohamed-aminebousahih@mohamedminesair.home>
2025-07-11 00:06:46 +02:00
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