# Defined at class level
const THEMES = [# Theme 1{
        tileset = 'tileset_1',
        NPC_mid_boss = 'folder_1/mid_boss',
        NPC_end_boss = 'folder_1/end_boss',# ...},# Theme 2{
        tileset = 'tileset_2',
        NPC_mid_boss = 'folder_2/mid_boss',
        NPC_end_boss = 'folder_2/end_boss',# ...},# ...
]


func my_func():# Pick a random theme
    var theme = THEMES[randi() % THEMES.size()]
    tileset_to_use = theme.tileset
    # ...

/*** comm ***/
.site{
	background-color: #eff3f5;
}
.hidden{
	display: none;
}
/*** header ***/
.site-title{
	line-height: 32px;
}
.menu-top ul > li > a{
	font-size: 16px;
	font-weight: 400;
}
.menu-top{
	margin-left: 240px;
}
.logo{
	height: 32px;
	width: 150px;
}
/*** widget ***/
#bbp_search_submit{
	display: none;
}
#bbp_search{
	width: 100%;
	padding: 10px;
	border: 0;
}
/*** footer ***/
.site-footer{
	border-top: 1px solid #fff;
}
.footer-right .logo{
	height: 30px;
	width: 124px;
}
/*** mobile ***/

………..