Adding modding folder with a hacked build.

modding/ss-specs/content/AccessLevels.md

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+## Access Levels
+
+Doors can be restricted to certain access levels. The engine knows about 32 access levels (0..31).
+
+The names of the access levels are stored as [texts](../media/Texts.md) in resource ```0x0879```. Per access level there
+are two text strings, so 64 in total. The first string is the short name, for example ```STD``` and the second the long
+name, ```Standard```.
+
+The first level (0) with name ```None``` is not checked. Doors with level 0 immediately open.

modding/ss-specs/content/ElectronicMessages.md

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+## Electronic Messages
+
+This chapter documents the electronic messages that the hacker receives either through triggers or collecting them.
+This means e-mails (including video mails), logs and data fragments - everything the "Multimedia data reader" can show.
+
+### Text Format
+
+The [text resources](../media/Texts.md#electronic-messages) for the messages contain both the content, as well as the
+meta information, encoded in text form. Any such message resource has the following string blocks:
+
+    1 line   Meta info
+    1 line   Title
+    1 line   Sender
+    1 line   Subject
+    N lines  Verbose text
+    1 line   Empty
+    M lines  Terse text
+    1 line   Empty
+
+The ```Meta info``` line describes what to show additionally. This text has the following format:
+
+    meta-info := [event " "] [color " "] [left-mfd] ["," [" "] right-mfd]
+    event     := ("i" hex2) | "t"
+    color     := "c" hex2
+    left-mfd  := dec
+    right-mfd := dec
+
+    Examples:
+    "13, 18"
+    "i17 8"
+    "t cD1 23,23"
+    "cD1 23,6"
+
+
+For most of the messages, at least ```left-mfd``` is specified. ```left-mfd``` and ```right-mfd``` are decimal offset
+numbers that refer to the image to show in the respective MFD. The offset is based on resource ```0x0028```.
+If ```left-mfd``` is greater or equal 256, then the message refers to a video mail. Video mails don't have an MFD image.
+
+If specified, the ```color``` field identifies a hexadecimal colour palette index. This colour is used to draw the sender and subject lines.
+
+The ```event``` field chains messages together. "i" events identify the message that must immediately follow the current one;
+The hexadecimal number is the offset for the next message (based on resource ```0x0989```). Such interrupt messages then have "t" as event.
+
+> The vanilla resource files contain a few messages with errors in them:
+> There are some "stub email" messages with empty header lines, the text "stub email" twice and only one terminating empty line.
+> Furthermore, there is one message in ```gerstrng.res``` which misses the terminating empty line in the terse text.
+
+### Text Content
+
+Within the texts, the substring ```$N``` is the placeholder for the name of the hacker.
+
+### Audio
+
+Corresponding audio resources are based on ID ```0x0AB5```. If an electronic message with ID X has audio, the audio will have resource ID ```0x0AB5``` + X. (Also: resource ID of text resource + 300)
+
+These audio resources are [MOVI resources](../media/moviResources.md) with only the audio component. The audio recordings are stored in the files
+```citalog.res``` (English), ```geralog.res``` (German) and ```frnalog.res``` (French).

modding/ss-specs/content/LevelTextures.md

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+## Level Textures
+
+A level texture is a square bitmap used for level paneling - floors, ceiling and walls. The resources contain 273 textures,
+for which there are four different resolutions available.
+
+### Bitmaps
+
+The bitmaps are stored uncompressed in ```texture.res``` in the following resources:
+
+    0x004C           16x16 bitmaps, one per block (a compound resource)
+    0x004D           32x32 bitmaps, one per block (a compound resource)
+    0x02C3 - 0x03D3  64x64 bitmaps, one per resource
+    0x03E8 - 0x04F8  128x128 bitmaps, one per resource
+
+### Texts
+
+Each texture comes with a description (name) and a "can't be used" message. [These texts](../media/Texts.md)
+are stored in resources ```0x086A``` and ```0x086B``` respectively.
+
+> Note: The text resources reserve 512 blocks, but only 273 are used.
+
+### Properties
+
+The [texture properties](../fileFormat/PropertyFiles#texture-Properties-textprop.dat) give further information on textures.
+
+### Animation
+
+Some textures, according to their properties, are in animation groups. These groups are controlled [per level](../archives/textureAnimation.md).
+