Documentation update

CHANGELOG.md

@@ -24,7 +24,8 @@
 * Removed the ScraperHaltOnInvalidMedia option and corresponding menu entry as it has been superseded by the HTTP error code logic
 * Added a ScraperIgnoreHTTP404Errors option that can be manually set in es_settings.xml to ignore 404 errors (resource not found)
 * Added Mednafen standalone as an alternative emulator for the gb, gba and gbc systems
-* Added Mesen standalone as an alternative emulator for the multivision and sg-1000 systems on Linux, Unix and Windows
+* Added Mesen standalone as an alternative emulator for the gamegear, mastersystem, multivision and sg-1000 systems on Linux, Unix and Windows
+* Set Mesen standalone to specifically run in Super Game Boy mode for the sgb system on Linux, Unix and Windows
 * Added the melonDS DS RetroArch core as an alternative emulator for the nds system
 * (Linux) Added support for the AppImage release of Vita3K
 * (Linux) Added support for the Flatpak release of puNES
@@ -62,6 +63,8 @@
 * An extra space character was appended to text elements when setting the systemdata property to gamecountGames or gamecountGamesNoText
 * Theme loading debug output would sometimes print incorrect paths when the configuration included files using variables
 * Font textures were sometimes updated with empty glyhps which generated OpenGL errors on some mobile GPUs
+* The custom collection editing popup did not show the correct button name if the controller type was a PlayStation variant
+* The UI mode confirmation dialog did not show the correct button descriptions if the controller type was PlayStation 1/2/3
 
 ## Version 2.2.1
 

INSTALL-DEV.md

@@ -1733,6 +1733,8 @@ The es_systems.xml file on Android utilizes variables heavily to implement the _
 There are two main ways to pass options to emulators, using _extras_ or using the _data_ URI. There can only be a single data URI but there can be an arbitrary amount of extras. To understand more about the way this works, you can read about the _putExtra()_ and and _setData()_ functions here:\
 https://developer.android.com/reference/android/content/Intent
 
+`%MIMETYPE%` - Sets an explicit MIME type, which you need to assign using an equal sign such as %MIMETYPE%=text/plain. You will rarely, if ever, need to set an explicit MIME type so this variable is of limited use. By default Android will set the MIME type to application/octet-stream which is normally what you want.
+
 There are three approaches to passing game ROMs to emulators by using the following variables:
 
 `%ROM%` - Replaced with the absolute path to the selected ROM. This is a traditional method to provide the game ROM and its use will likely decrease or go away completely long term as emulators move to more modern methods.

USERGUIDE-DEV.md

@@ -4010,7 +4010,7 @@ The **@** symbol indicates that the emulator is _deprecated_ and will be removed
 | gamate                | Bit Corporation Gamate                         | MAME - Current                    | MAME **(Standalone)**             | Yes          | Single archive or ROM file           |
 | gameandwatch          | Nintendo Game and Watch                        | MAME Local Artwork **(Standalone)** | MAME **(Standalone)**,<br>Handheld Electronic (GW) | No           | See the specific _LCD handheld games_ section elsewhere in this guide |
 | gamecom               | Tiger Electronics Game.com                     | MAME - Current                    | MAME **(Standalone)**             | Yes          | Single archive or ROM file |
-| gamegear              | Sega Game Gear                                 | Genesis Plus GX                   | Genesis Plus GX Wide,<br>Gearsystem,<br>SMS Plus GX,<br>PicoDrive,<br>Mednafen **(Standalone)**,<br>ares **(Standalone)** | No           | Single archive or ROM file |
+| gamegear              | Sega Game Gear                                 | Genesis Plus GX                   | Genesis Plus GX Wide,<br>Gearsystem,<br>SMS Plus GX,<br>PicoDrive,<br>Mednafen **(Standalone)**,<br>Mesen **(Standalone)** [LW],<br>ares **(Standalone)** | No           | Single archive or ROM file |
 | gb                    | Nintendo Game Boy                              | Gambatte                          | SameBoy,<br>SameBoy **(Standalone)**,<br>Gearboy,<br>Gearboy **(Standalone)** [LW],<br>TGB Dual,<br>Mesen-S,<br>Mesen **(Standalone)** [LW],<br>bsnes,<br>mGBA,<br>mGBA **(Standalone)**,<br>VBA-M,<br>VBA-M **(Standalone)**,<br>Mednafen **(Standalone)**,<br>ares **(Standalone)**,<br>SkyEmu **(Standalone)** | No           | Single archive or ROM file |
 | gba                   | Nintendo Game Boy Advance                      | mGBA                              | mGBA **(Standalone)**,<br>VBA-M,<br>VBA-M **(Standalone)**,<br>VBA Next,<br>gpSP,<br>Mednafen **(Standalone)**,<br>ares **(Standalone)**,<br>SkyEmu **(Standalone)** | Yes for ares      | Single archive or ROM file |
 | gbc                   | Nintendo Game Boy Color                        | Gambatte                          | SameBoy,<br>SameBoy **(Standalone)**,<br>Gearboy,<br>Gearboy **(Standalone)** [LW],<br>TGB Dual,<br>Mesen-S,<br>Mesen **(Standalone)** [LW],<br>bsnes,<br>mGBA,<br>mGBA **(Standalone)**,<br>VBA-M,<br>VBA-M **(Standalone)**,<br>Mednafen **(Standalone)**,<br>ares **(Standalone)**,<br>SkyEmu **(Standalone)** | No           | Single archive or ROM file |
@@ -4029,7 +4029,7 @@ The **@** symbol indicates that the emulator is _deprecated_ and will be removed
 | macintosh             | Apple Macintosh                                | MAME Mac SE Bootable **(Standalone)** | MAME Mac SE Boot Disk **(Standalone)**,<br>MAME Mac Plus Bootable **(Standalone)**,<br>MAME Mac Plus Boot Disk **(Standalone)**,<br>Basilisk II **(Standalone)**,<br>SheepShaver **(Standalone)** | Yes          | See the specific _Apple Macintosh_ section elsewhere in this guide |
 | mame                  | Multiple Arcade Machine Emulator               | MAME - Current                    | MAME 2010,<br>MAME 2003-Plus,<br>MAME 2000,<br>MAME **(Standalone)**,<br>FinalBurn Neo,<br>FinalBurn Neo **(Standalone)** [LW],<br>FB Alpha 2012,<br>Flycast,<br>Flycast **(Standalone)**,<br>Flycast Dojo **(Standalone)**,<br>Kronos [LW],<br>Model 2 Emulator **(Standalone)** [W],<br>Model 2 Emulator [Suspend ES-DE] **(Standalone)** [W],<br>Supermodel **(Standalone)** [LW],<br>_Shortcut or script_ | Depends      | See the specific _Arcade and Neo Geo_ section elsewhere in this guide |
 | mame-advmame          | AdvanceMAME                                    | AdvanceMAME **(Standalone)** [LW] |                                   | Depends      | See the specific _Arcade and Neo Geo_ section elsewhere in this guide |
-| mastersystem          | Sega Master System                             | Genesis Plus GX                   | Genesis Plus GX Wide,<br>SMS Plus GX,<br>Gearsystem,<br>PicoDrive,<br>Mednafen **(Standalone)**,<br>ares **(Standalone)** | No           | Single archive or ROM file |
+| mastersystem          | Sega Master System                             | Genesis Plus GX                   | Genesis Plus GX Wide,<br>SMS Plus GX,<br>Gearsystem,<br>PicoDrive,<br>Mednafen **(Standalone)**,<br>Mesen **(Standalone)** [LW],<br>ares **(Standalone)** | No           | Single archive or ROM file |
 | megacd                | Sega Mega-CD                                   | Genesis Plus GX                   | Genesis Plus GX Wide,<br>PicoDrive,<br>ares **(Standalone)** | Yes          |                                      |
 | megacdjp              | Sega Mega-CD [Japan]                           | Genesis Plus GX                   | Genesis Plus GX Wide,<br>PicoDrive,<br>ares **(Standalone)** | Yes          |                                      |
 | megadrive             | Sega Mega Drive                                | Genesis Plus GX                   | Genesis Plus GX Wide,<br>PicoDrive,<br>BlastEm,<br>BlastEm **(Standalone)** [L],<br>Mednafen **(Standalone)**,<br>ares **(Standalone)** | No           | Single archive or ROM file |