Updated Creating Themes (markdown)

Creating-Themes.md

@@ -1,8 +1,29 @@
-[Example theme](https://gist.github.com/Jiiks/7b51de08cb8118682df8)
+# Overview
 
-Discord is an electron app, essentially a browser, so themes are just CSS.
+1. BandagedBD themes are limited to a single file.
+2. The file must be named as `themename.theme.css`, the theme name can be whatever you want.
+3. Theme files require a special header ([see below](#themes-require-a-special-header)).
 
-You can open the developer tools with
+# Details
 
-* Windows: `Ctrl` + `Shift` + `i`
-* MacOS: `Cmd` + `Alt` + `i`
+Take a look at this [Example](https://gist.github.com/Jiiks/7b51de08cb8118682df8), which shows how a theme file should look.
+
+## Themes require a special header
+
+BandagedBD requires one line at the beginning of a theme file to identify it:
+
+```js
+//META{"name":"Theme Name"}*//
+```
+
+Optionally  you can also include a website, source, and description field in the meta like so:
+
+```js
+//META{"name":"Theme","website":"https://example.com","source":"https://example.com/theme.css","description":"This theme makes things look better."}*//
+```
+
+# Extra
+
+## Developer Tools
+
+Discord is an electron app which is essentially chromium, being as such you can access the chrome developer tools with `Ctrl` + `Shift` + `i` on Windows and `Cmd` + `Alt` + `i` on MacOS.