friendica/view/theme/frio/config.php

<?php
require_once('view/theme/frio/php/Image.php');

function theme_content(App $a) {
	if (!local_user()) {
		return;
	}
	$arr = array();

	$arr["schema"]		= get_pconfig(local_user(),'frio', 'schema');
	$arr["nav_bg"]		= get_pconfig(local_user(),'frio', 'nav_bg' );
	$arr["nav_icon_color"]	= get_pconfig(local_user(),'frio', 'nav_icon_color' );
	$arr["link_color"]	= get_pconfig(local_user(),'frio', 'link_color' );
	$arr["bgcolor"]		= get_pconfig(local_user(),'frio', 'background_color' );
	$arr["contentbg_transp"] = get_pconfig(local_user(),'frio', 'contentbg_transp' );
	$arr["background_image"] = get_pconfig(local_user(),'frio', 'background_image' );
	$arr["bg_image_option"] = get_pconfig(local_user(),'frio', 'bg_image_option' );

	return frio_form($arr);
}

function theme_post(App $a) {
	if (!local_user()) {
		return;
	}

	if (isset($_POST['frio-settings-submit'])) {
		set_pconfig(local_user(), 'frio', 'schema',		$_POST["frio_schema"]);
		set_pconfig(local_user(), 'frio', 'nav_bg',		$_POST["frio_nav_bg"]);
		set_pconfig(local_user(), 'frio', 'nav_icon_color',	$_POST["frio_nav_icon_color"]);
		set_pconfig(local_user(), 'frio', 'link_color',		$_POST["frio_link_color"]);
		set_pconfig(local_user(), 'frio', 'background_color',	$_POST["frio_background_color"]);
		set_pconfig(local_user(), 'frio', 'contentbg_transp',	$_POST["frio_contentbg_transp"]);
		set_pconfig(local_user(), 'frio', 'background_image',	$_POST["frio_background_image"]);
		set_pconfig(local_user(), 'frio', 'bg_image_option',	$_POST["frio_bg_image_option"]);
	}
}

function frio_form($arr) {
	require_once("view/theme/frio/php/schema.php");

	$scheme_info = get_schema_info($arr["schema"]);
	$disable = $scheme_info["overwrites"];
	if (!is_array($disable)) $disable = array();

	$scheme_choices = array();
	$scheme_choices["---"] = t("Default");
	$files = glob('view/theme/frio/schema/*.php');
	if($files) {
		foreach($files as $file) {
			$f = basename($file, ".php");
			if($f != 'default') {
				$scheme_name = $f;
				$scheme_choices[$f] = $scheme_name;
			}
		}
	}

	$background_image_help = "<strong>" . t("Note: "). "</strong>".t("Check image permissions if all users are allowed to visit the image");


	$t = get_markup_template('theme_settings.tpl');
	$o .= replace_macros($t, array(
		'$submit'		=> t('Submit'),
		'$baseurl'		=> App::get_baseurl(),
		'$title'		=> t("Theme settings"),
		'$schema'		=> array('frio_schema',		t("Select scheme"),			$arr["schema"], '', $scheme_choices),
		'$nav_bg'		=> array_key_exists("nav_bg", $disable) ? "" : array('frio_nav_bg',		t('Navigation bar background color'),	$arr['nav_bg']),
		'$nav_icon_color'	=> array_key_exists("nav_icon_color", $disable) ? "" : array('frio_nav_icon_color', t('Navigation bar icon color '),	$arr['nav_icon_color']),
		'$link_color'		=> array_key_exists("link_color", $disable) ? "" : array('frio_link_color',	t('Link color'),			$arr['link_color'],		'', $link_colors),
		'$bgcolor'		=> array_key_exists("bgcolor", $disable) ? "" : array('frio_background_color', t('Set the background color'),	$arr['bgcolor']),
		'$contentbg_transp'	=> array_key_exists("contentbg_transp", $disable) ? "" : array('frio_contentbg_transp', t("Content background transparency"), ($arr["contentbg_transp"] ? $arr["contentbg_transp"] : 0 )),
		'$background_image'	=> array_key_exists("background_image", $disable ) ? "" : array('frio_background_image', t('Set the background image'),	$arr['background_image'], $background_image_help),
		'$bg_image_options'	=> Image::get_options($arr),
	));

	return $o;
}