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PortProtonQt/documentation/theme_guide/README.md

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---
## 📋 Contents
- [Overview](#-overview)
- [Creating the Theme Folder](#-creating-the-theme-folder)
- [Style File](#-style-file-stylespy)
- [Animation configuration](#-animation-configuration)
- [Metadata](#-metadata-metainfoini)
- [Screenshots](#-screenshots)
- [Fonts and Icons](#-fonts-and-icons-optional)
---
## 📖 Overview
Themes in `PortProtonQT` allow customizing the UI appearance. Themes are stored under:
- `~/.local/share/PortProtonQT/themes`.
---
## 📁 Creating the Theme Folder
```bash
mkdir -p ~/.local/share/PortProtonQT/themes/my_custom_theme
```
---
## 🎨 Style File (`styles.py`)
Create a `styles.py` in the theme root. It should define variables or functions that return CSS.
**Example:**
```python
def custom_button_style(color1, color2):
return f"""
QPushButton {{
background: qlineargradient(x1:0, y1:0, x2:1, y2:0,
stop:0 {color1}, stop:1 {color2});
}}
"""
```
---
## 🎥 Animation configuration
The `GAME_CARD_ANIMATION` dictionary controls all animation parameters for game cards:
```python
GAME_CARD_ANIMATION = {
# Type of animation when entering and exiting the detail page
# Possible values: "fade", "slide_left", "slide_right", "slide_up", "slide_down", "bounce"
"detail_page_animation_type": "fade",
# Border width of the card in idle state (no hover or focus).
# Affects the thickness of the border when the card is not highlighted.
# Value in pixels.
"default_border_width": 2,
# Border width on hover.
# Increases the border thickness when the cursor is over the card.
# Value in pixels.
"hover_border_width": 8,
# Border width on focus (e.g., selected via keyboard).
# Increases the border thickness when the card is focused.
# Value in pixels.
"focus_border_width": 12,
# Minimum border width during pulsing animation.
# Sets the minimum border thickness during the "breathing" animation.
# Value in pixels.
"pulse_min_border_width": 8,
# Maximum border width during pulsing animation.
# Sets the maximum border thickness during pulsing.
# Value in pixels.
"pulse_max_border_width": 10,
# Duration of the border thickness animation (e.g., on hover or focus).
# Affects the speed of transition between different border widths.
# Value in milliseconds.
"thickness_anim_duration": 300,
# Duration of one pulsing animation cycle.
# Defines how fast the border "pulses" between min and max values.
# Value in milliseconds.
"pulse_anim_duration": 800,
# Duration of the gradient rotation animation.
# Affects how fast the gradient border rotates around the card.
# Value in milliseconds.
"gradient_anim_duration": 3000,
# Starting angle of the gradient (in degrees).
# Defines the initial rotation point of the gradient when the animation starts.
"gradient_start_angle": 360,
# Ending angle of the gradient (in degrees).
# Defines the end rotation point of the gradient.
# A value of 0 means a full 360-degree rotation.
"gradient_end_angle": 0,
# Easing curve type for border expansion animation (on hover/focus).
# Affects the "feel" of the animation (e.g., smooth acceleration or deceleration).
# Possible values: strings corresponding to QEasingCurve.Type (e.g., "OutBack", "InOutQuad").
"thickness_easing_curve": "OutBack",
# Easing curve type for border contraction animation (on mouse leave/focus loss).
# Affects the "feel" of returning to the original border width.
"thickness_easing_curve_out": "InBack",
# Gradient colors for the animated border.
# A list of dictionaries where each defines a position (0.01.0) and color in hex format.
# Affects the appearance of the border on hover or focus.
"gradient_colors": [
{"position": 0, "color": "#00fff5"}, # Start color (cyan)
{"position": 0.33, "color": "#FF5733"}, # 33% color (orange)
{"position": 0.66, "color": "#9B59B6"}, # 66% color (purple)
{"position": 1, "color": "#00fff5"} # End color (back to cyan)
],
# Duration of the fade animation when entering the detail page
"detail_page_fade_duration": 350,
# Duration of the slide animation when entering the detail page
"detail_page_slide_duration": 500,
# Duration of the bounce animation when entering the detail page
"detail_page_bounce_duration": 400,
# Duration of the fade animation when exiting the detail page
"detail_page_fade_duration_exit": 350,
# Duration of the slide animation when exiting the detail page
"detail_page_slide_duration_exit": 500,
# Duration of the bounce animation when exiting the detail page
"detail_page_bounce_duration_exit": 400,
# Easing curve type for animation when entering the detail page
# Applies to slide and bounce animations
"detail_page_easing_curve": "OutCubic",
# Easing curve type for animation when exiting the detail page
# Applies to slide and bounce animations
"detail_page_easing_curve_exit": "InCubic"
}
```
---
## 📝 Metadata (`metainfo.ini`)
```ini
[Metainfo]
name = My Custom Theme
author = Your Name
author_link = https://example.com
description = Description of your theme.
```
---
## 🖼 Screenshots
Folder: `images/screenshots/` — place UI screenshots there.
---
## 🔡 Fonts and Icons (optional)
- Fonts: `fonts/*.ttf` or `.otf`
- Icons: `images/icons/*.svg/.png`
---