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85 lines
3 KiB
Markdown
85 lines
3 KiB
Markdown
Themes
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======
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EmulationStation allows each system to have its own "theme." A theme is a collection of display settings and images defined in an XML document.
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ES will check two places for a theme: first, the system's search directory for theme.xml. Then, if that's not found, $HOME/.emulationstation/es_theme.xml.
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Almost all positions, dimensions, etc. work in percentages - that is, they are a decimal between 0 and 1, representing the percentage of the screen on that axis to use.
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This ensures that themes look similar at every resolution.
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Example
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=======
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Here's a simple theme that defines some colors and displays a background:
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```
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<theme>
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<listPrimaryColor>0000FF</listPrimaryColor>
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<listSecondaryColor>00FF00</listSecondaryColor>
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<component>
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<type>image</type>
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<path>./theme/background.png</path>
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<pos>0 0</pos>
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<dim>1 1</dim>
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<origin>0 0</origin>
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</component>
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</theme>
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```
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All themes must be enclosed in a `<theme>` tag.
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Components
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==========
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A theme is made up of components, which have various types. At the moment, the only type is `image`. Components are rendered in the order they are defined - that means you'll want to define the background first, a header image second, etc.
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The "image" component
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=====================
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Used to display an image.
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`<path>` - path to the image file. Most common file types are supported, and . and ~ are properly expanded.
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`<pos>` - the position, as two screen percentages, at which to display the image.
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`<dim>` - the dimensions, as two screen percentages, that the image will be resized to. Make one axis 0 to keep the aspect ratio.
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`<origin>` - the point on the image that `<pos>` defines, as an image percentage. "0.5 0.5", the center of the image, by default.
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`<tiled />` - if present, the image is tiled instead of resized. A smaller image tiled many times is **slower** than a larger immage tiled few times.
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Display tags
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============
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Display tags must be at the root of the <theme> tree - for example, they can't be inside a component tag. They are not required.
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`<listPrimaryColor>` - the hex font color to use for games on the GuiGameList.
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`<listSecondaryColor>` - the hex font color to use for folders on the GuiGameList.
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`<descColor>` - the hex font color to use for the description on the GuiGameList.
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`<listSelectorColor>` - the hex color to use for the "selector bar" on the GuiGameList.
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`<listLeftAlign />` - if present, the games list names will be left aligned to $infoWidth.
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`<hideHeader />` - if present, the system name header won't be displayed (useful for replacing it with an image).
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`<hideDividers />` - if present, the divider between games on the detailed GuiGameList won't be displayed.
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List of variables
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=================
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Variables can be used in position and dimension definitions. They can be added, subtracted, multiplied, and divided. Parenthesis are valid. They are a percentage of the screen.
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`$headerHeight` - height of the system name header.
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`$infoWidth` - where the center of the horizontal divider is drawn.
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-Aloshi
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http://www.aloshi.com
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