diff --git a/developer_manual/app/css.rst b/developer_manual/app/css.rst
index cea018ac1..bc2b7d1f6 100644
--- a/developer_manual/app/css.rst
+++ b/developer_manual/app/css.rst
@@ -39,4 +39,197 @@ ownCloud provides a default CSS navigation layout. If list entries should have 1
             </li>
         </ul>
     </div>
-    
\ No newline at end of file
+
+Icons
+=====
+To use icons which are shipped in core, special class to apply the background image are supplied:
+
+* **icon-breadcrumb**:
+    .. image:: ../img/7/breadcrumb.png
+
+* **icon-loading**:
+    .. image:: ../img/7/loading.gif
+
+* **icon-loading-dark**:
+    .. image:: ../img/7/loading-dark.gif
+
+* **icon-loading-small**:
+    .. image:: ../img/7/loading-small.gif
+
+* **icon-noise**:
+    .. image:: ../img/7/noise.png
+
+* **icon-add**:
+    .. image:: ../img/7/actions/add.svg
+
+* **icon-caret**:
+    .. image:: ../img/7/actions/caret.svg
+
+* **icon-caret-dark**:
+    .. image:: ../img/7/actions/caret-dark.svg
+
+* **icon-checkmark**:
+    .. image:: ../img/7/actions/checkmark.svg
+
+* **icon-checkmark-white**:
+    .. image:: ../img/7/actions/checkmark-white.svg
+
+* **icon-clock**:
+    .. image:: ../img/7/actions/clock.svg
+
+* **icon-close**:
+    .. image:: ../img/7/actions/close.svg
+
+* **icon-confirm**:
+    .. image:: ../img/7/actions/confirm.svg
+
+* **icon-delete**:
+    .. image:: ../img/7/actions/delete.svg
+
+* **icon-download**:
+    .. image:: ../img/7/actions/download.svg
+
+* **icon-history**:
+    .. image:: ../img/7/actions/history.svg
+
+* **icon-info**:
+    .. image:: ../img/7/actions/info.svg
+
+* **icon-lock**:
+    .. image:: ../img/7/actions/lock.svg
+
+* **icon-logout**:
+    .. image:: ../img/7/actions/logout.svg
+
+* **icon-mail**:
+    .. image:: ../img/7/actions/mail.svg
+
+* **icon-more**:
+    .. image:: ../img/7/actions/more.svg
+
+* **icon-password**:
+    .. image:: ../img/7/actions/password.svg
+
+* **icon-pause**:
+    .. image:: ../img/7/actions/pause.svg
+
+* **icon-pause-big**:
+    .. image:: ../img/7/actions/pause-big.svg
+
+* **icon-play**:
+    .. image:: ../img/7/actions/play.svg
+
+* **icon-play-add**:
+    .. image:: ../img/7/actions/play-add.svg
+
+* **icon-play-big**:
+    .. image:: ../img/7/actions/play-big.svg
+
+* **icon-play-next**:
+    .. image:: ../img/7/actions/play-next.svg
+
+* **icon-play-previous**:
+    .. image:: ../img/7/actions/play-previous.svg
+
+* **icon-public**:
+    .. image:: ../img/7/actions/public.svg
+
+* **icon-rename**:
+    .. image:: ../img/7/actions/rename.svg
+
+* **icon-search**:
+    .. image:: ../img/7/actions/search.svg
+
+* **icon-settings**:
+    .. image:: ../img/7/actions/settings.svg
+
+
+* **icon-share**:
+    .. image:: ../img/7/actions/share.svg
+
+* **icon-shared**:
+    .. image:: ../img/7/actions/shared.svg
+
+* **icon-sound**:
+    .. image:: ../img/7/actions/sound.svg
+
+* **icon-sound-off**:
+    .. image:: ../img/7/actions/sound-off.svg
+
+* **icon-star**:
+    .. image:: ../img/7/actions/star.svg
+
+* **icon-starred**:
+    .. image:: ../img/7/actions/starred.svg
+
+* **icon-toggle**:
+    .. image:: ../img/7/actions/toggle.svg
+
+
+* **icon-triangle-e**:
+    .. image:: ../img/7/actions/triangle-e.svg
+
+* **icon-triangle-n**:
+    .. image:: ../img/7/actions/triangle-n.svg
+
+* **icon-triangle-s**:
+    .. image:: ../img/7/actions/triangle-s.svg
+
+
+* **icon-upload**:
+    .. image:: ../img/7/actions/upload.svg
+
+* **icon-upload-white**:
+    .. image:: ../img/7/actions/upload-white.svg
+
+
+* **icon-user**:
+    .. image:: ../img/7/actions/user.svg
+
+* **icon-view-close**:
+    .. image:: ../img/7/actions/view-close.svg
+
+* **icon-view-next**:
+    .. image:: ../img/7/actions/view-next.svg
+
+* **icon-view-pause**:
+    .. image:: ../img/7/actions/view-pause.svg
+
+* **icon-view-play**:
+    .. image:: ../img/7/actions/view-play.svg
+
+* **icon-view-previous**:
+    .. image:: ../img/7/actions/view-previous.svg
+
+* **icon-calendar-dark**:
+    .. image:: ../img/7/places/calendar-dark.svg
+
+* **icon-contacts-dark**:
+    .. image:: ../img/7/places/contacts-dark.svg
+
+* **icon-file**:
+    .. image:: ../img/7/places/file.svg
+
+* **icon-files**:
+    .. image:: ../img/7/places/files.svg
+
+* **icon-folder**:
+    .. image:: ../img/7/places/folder.svg
+
+* **icon-filetype-text**:
+    .. image:: ../img/7/filetypes/text.svg
+
+* **icon-filetype-folder**:
+    .. image:: ../img/7/filetypes/folder.svg
+
+* **icon-home**:
+    .. image:: ../img/7/places/home.svg
+
+* **icon-link**:
+    .. image:: ../img/7/places/link.svg
+
+* **icon-music**:
+    .. image:: ../img/7/places/music.svg
+
+* **icon-picture**:
+    .. image:: ../img/7/places/picture.svg
diff --git a/developer_manual/img/7/actions/add.png b/developer_manual/img/7/actions/add.png
new file mode 100644
index 000000000..8ae17cfe1
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diff --git a/developer_manual/img/7/actions/add.svg b/developer_manual/img/7/actions/add.svg
new file mode 100644
index 000000000..ecbab6f13
--- /dev/null
+++ b/developer_manual/img/7/actions/add.svg
@@ -0,0 +1,5 @@
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g transform="matrix(-0.70711,-0.70711,0.70711,-0.70711,-724.84998,753.15998)">
+  <path d="m3.7547,1041.6,1.4142-1.4142,3.5355,3.5355,3.5355-3.5355,1.4142,1.4142-3.5355,3.5355,3.5355,3.5356-1.4142,1.4142-3.5355-3.5356-3.5164,3.5547-1.4333-1.4333,3.5355-3.5356z"/>
+ </g>
+</svg>
diff --git a/developer_manual/img/7/actions/caret-dark.png b/developer_manual/img/7/actions/caret-dark.png
new file mode 100644
index 000000000..215af33ea
Binary files /dev/null and b/developer_manual/img/7/actions/caret-dark.png differ
diff --git a/developer_manual/img/7/actions/caret-dark.svg b/developer_manual/img/7/actions/caret-dark.svg
new file mode 100644
index 000000000..2d75e4dd8
--- /dev/null
+++ b/developer_manual/img/7/actions/caret-dark.svg
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <path style="block-progression:tb;color:#000000;text-transform:none;text-indent:0" fill="#FFF" d="m4 5 4 7 4-6.989z" fill-opacity=".19608"/>
+ <path style="block-progression:tb;color:#000000;text-transform:none;text-indent:0" d="m4 4 4 7 4-6.989z"/>
+</svg>
diff --git a/developer_manual/img/7/actions/caret.png b/developer_manual/img/7/actions/caret.png
new file mode 100644
index 000000000..7066b767a
Binary files /dev/null and b/developer_manual/img/7/actions/caret.png differ
diff --git a/developer_manual/img/7/actions/caret.svg b/developer_manual/img/7/actions/caret.svg
new file mode 100644
index 000000000..8cd758daf
--- /dev/null
+++ b/developer_manual/img/7/actions/caret.svg
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="10" width="10" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <defs>
+  <linearGradient id="a" x1="8.4965" gradientUnits="userSpaceOnUse" y1="-.061574" gradientTransform="matrix(1.0526 0 0 .98436 -3.4211 1.0602)" x2="8.4965" y2="8.0832">
+   <stop stop-color="#fff" offset="0"/>
+   <stop stop-color="#e6e6e6" offset="1"/>
+  </linearGradient>
+ </defs>
+ <path opacity=".5" style="block-progression:tb;color:#000000;text-transform:none;text-indent:0" d="m1 2 4 8 4-7.989z"/>
+ <path style="block-progression:tb;color:#000000;text-transform:none;text-indent:0" d="m1 1 4 8 4-7.989z" fill="url(#a)"/>
+</svg>
diff --git a/developer_manual/img/7/actions/checkmark-white.png b/developer_manual/img/7/actions/checkmark-white.png
new file mode 100644
index 000000000..27f17204b
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diff --git a/developer_manual/img/7/actions/checkmark-white.svg b/developer_manual/img/7/actions/checkmark-white.svg
new file mode 100644
index 000000000..e6b63a4d5
--- /dev/null
+++ b/developer_manual/img/7/actions/checkmark-white.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" overflow="visible" height="16px" width="16px" version="1.1" y="0px" x="0px" xmlns:cc="http://creativecommons.org/ns#" enable-background="new -0.5 -0.5 16 16" viewBox="-0.5 -0.5 16 16" xmlns:dc="http://purl.org/dc/elements/1.1/">
+<path transform="translate(-.5 -.5)" d="m12.438 3.6875c-0.363 0-0.726 0.1314-1 0.4063l-4.5005 4.5-1.9687-2c-0.5498-0.5484-1.4489-0.5498-2 0l-0.5 0.5c-0.5512 0.5496-0.5512 1.4502 0 2l2.9687 2.9682c0.0063 0.007-0.0065 0.025 0 0.032l0.5 0.5c0.5497 0.55 1.4503 0.55 2 0l0.5-0.5 0.1875-0.219 5.313-5.2812c0.549-0.5498 0.549-1.4503 0-2l-0.5-0.5c-0.275-0.2749-0.638-0.4063-1-0.4063z" fill="#fff"/>
+</svg>
diff --git a/developer_manual/img/7/actions/checkmark.png b/developer_manual/img/7/actions/checkmark.png
new file mode 100644
index 000000000..8b4c8ddc7
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diff --git a/developer_manual/img/7/actions/checkmark.svg b/developer_manual/img/7/actions/checkmark.svg
new file mode 100644
index 000000000..dbb97d1b4
--- /dev/null
+++ b/developer_manual/img/7/actions/checkmark.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" overflow="visible" height="16px" width="16px" version="1.1" y="0px" x="0px" xmlns:cc="http://creativecommons.org/ns#" enable-background="new -0.5 -0.5 16 16" viewBox="-0.5 -0.5 16 16" xmlns:dc="http://purl.org/dc/elements/1.1/">
+<path transform="translate(-.5 -.5)" d="m12.438 3.6875c-0.363 0-0.726 0.1314-1 0.4063l-4.5005 4.5-1.9687-2c-0.5498-0.5484-1.4489-0.5498-2 0l-0.5 0.5c-0.5512 0.5496-0.5512 1.4502 0 2l2.9687 2.9682c0.0063 0.007-0.0065 0.025 0 0.032l0.5 0.5c0.5497 0.55 1.4503 0.55 2 0l0.5-0.5 0.1875-0.219 5.313-5.2812c0.549-0.5498 0.549-1.4503 0-2l-0.5-0.5c-0.275-0.2749-0.638-0.4063-1-0.4063z"/>
+</svg>
diff --git a/developer_manual/img/7/actions/clock.png b/developer_manual/img/7/actions/clock.png
new file mode 100644
index 000000000..5023cf4c3
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diff --git a/developer_manual/img/7/actions/clock.svg b/developer_manual/img/7/actions/clock.svg
new file mode 100644
index 000000000..6b938deea
--- /dev/null
+++ b/developer_manual/img/7/actions/clock.svg
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" height="16px" width="16px" version="1.1" y="0px" x="0px" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 100 100">
+<path d="m50 89.836c-23.389 0-42.418-19.027-42.418-42.417s19.029-42.419 42.418-42.419 42.418 19.029 42.418 42.419-19.029 42.417-42.418 42.417zm0-79.924c-20.681 0-37.506 16.826-37.506 37.508 0 20.681 16.826 37.505 37.506 37.505s37.507-16.824 37.507-37.505c0-20.683-16.826-37.508-37.507-37.508z"/>
+<path d="m50.001 49.875c-0.141 0-0.283-0.011-0.427-0.037-1.173-0.206-2.03-1.226-2.03-2.419v-17.977c0-1.355 1.1-2.456 2.456-2.456 1.355 0 2.456 1.1 2.456 2.456v4.003l5.431-14.974c0.464-1.274 1.872-1.937 3.146-1.471 1.274 0.462 1.934 1.871 1.471 3.146l-10.195 28.11c-0.357 0.985-1.29 1.619-2.308 1.619z"/>
+<circle cy="12.956" cx="49.999" r="1.617"/>
+<path d="m50 14.778c-1.006 0-1.823-0.817-1.823-1.823 0-1.005 0.817-1.823 1.823-1.823 1.004 0 1.821 0.817 1.821 1.823s-0.817 1.823-1.821 1.823zm0-3.236c-0.779 0-1.414 0.635-1.414 1.413 0 0.779 0.635 1.414 1.414 1.414s1.412-0.635 1.412-1.414c0-0.778-0.633-1.413-1.412-1.413z"/>
+<circle cy="20.301" cx="34.343" r="1.47"/>
+<path d="m23.617 30.488c0.703 0.409 0.945 1.305 0.537 2.008-0.405 0.704-1.305 0.947-2.007 0.538-0.703-0.403-0.945-1.305-0.539-2.008 0.408-0.701 1.305-0.941 2.009-0.538z"/>
+<circle cy="47.42" cx="15.536" r="1.618"/>
+<path d="m15.536 49.242c-1.006 0-1.823-0.817-1.823-1.823 0.001-1 0.819-1.819 1.823-1.822 1.006 0 1.823 0.817 1.823 1.822 0 1.006-0.817 1.823-1.823 1.823zm0-3.236c-0.777 0.003-1.412 0.636-1.414 1.413 0 0.779 0.635 1.414 1.414 1.414s1.413-0.635 1.413-1.414c0-0.778-0.634-1.413-1.413-1.413z"/>
+<path d="m22.147 61.803c0.705-0.406 1.602-0.167 2.007 0.537 0.408 0.703 0.166 1.602-0.537 2.008-0.704 0.406-1.604 0.163-2.008-0.537-0.407-0.707-0.162-1.602 0.538-2.008z"/>
+<path d="m33.07 73.803c0.408-0.706 1.305-0.946 2.008-0.537 0.704 0.403 0.945 1.302 0.538 2.005-0.405 0.704-1.307 0.947-2.007 0.537-0.705-0.406-0.942-1.301-0.539-2.005z"/>
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+<path d="m50 83.706c-1.002-0.003-1.819-0.82-1.823-1.822 0-1.006 0.817-1.823 1.823-1.823 1.007 0 1.822 0.817 1.822 1.823 0 1.005-0.816 1.822-1.822 1.822zm0.006-3.236c-0.785 0-1.42 0.635-1.42 1.414 0.003 0.775 0.637 1.41 1.414 1.413 0.78 0 1.413-0.635 1.413-1.413 0-0.78-0.631-1.414-1.407-1.414z"/>
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+<path d="m84.464 49.038c-0.896-0.003-1.618-0.726-1.618-1.618-0.001-0.892 0.723-1.618 1.618-1.618 0.893-0.003 1.618 0.726 1.618 1.618-0.005 0.895-0.726 1.614-1.618 1.618z"/>
+<path d="m84.464 49.242c-1.006-0.003-1.822-0.822-1.822-1.823-0.002-0.486 0.188-0.943 0.532-1.287 0.344-0.345 0.803-0.535 1.29-0.535 1.007 0 1.822 0.817 1.822 1.822-0.004 1.003-0.823 1.82-1.822 1.823zm0.007-3.236c-0.386 0-0.74 0.147-1.008 0.416-0.267 0.267-0.412 0.621-0.412 0.998 0 0.777 0.635 1.41 1.413 1.414 0.775-0.003 1.408-0.638 1.413-1.415 0-0.778-0.631-1.413-1.406-1.413z"/>
+<path d="m77.853 33.034c-0.705 0.409-1.604 0.166-2.006-0.538-0.408-0.7-0.168-1.599 0.537-2.008 0.701-0.406 1.604-0.163 2.008 0.537 0.403 0.707 0.161 1.602-0.539 2.009z"/>
+<path d="m66.93 21.036c-0.407 0.704-1.308 0.943-2.008 0.537-0.704-0.403-0.945-1.305-0.537-2.008 0.404-0.703 1.306-0.943 2.006-0.537 0.704 0.409 0.942 1.305 0.539 2.008z"/>
+</svg>
diff --git a/developer_manual/img/7/actions/close.png b/developer_manual/img/7/actions/close.png
new file mode 100644
index 000000000..ece33258e
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diff --git a/developer_manual/img/7/actions/close.svg b/developer_manual/img/7/actions/close.svg
new file mode 100644
index 000000000..4471dbc63
--- /dev/null
+++ b/developer_manual/img/7/actions/close.svg
@@ -0,0 +1,3 @@
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <path d="M12.95,11.536,11.536,12.95,8,9.4142,4.4645,12.95,3.0503,11.536,6.5858,8,3.0503,4.4644,4.4645,3.0502,8,6.5858,11.516,3.0311,12.95,4.4644,9.4143,8z" fill="#000"/>
+</svg>
diff --git a/developer_manual/img/7/actions/confirm.png b/developer_manual/img/7/actions/confirm.png
new file mode 100644
index 000000000..3021d4c27
Binary files /dev/null and b/developer_manual/img/7/actions/confirm.png differ
diff --git a/developer_manual/img/7/actions/confirm.svg b/developer_manual/img/7/actions/confirm.svg
new file mode 100644
index 000000000..6b69c1d6c
--- /dev/null
+++ b/developer_manual/img/7/actions/confirm.svg
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g transform="translate(0 -1036.4)">
+  <path d="m1 1047.4v-6h7v-4l7 7-7 7v-4z"/>
+ </g>
+</svg>
diff --git a/developer_manual/img/7/actions/delete-hover.png b/developer_manual/img/7/actions/delete-hover.png
new file mode 100644
index 000000000..3f8cb6eff
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diff --git a/developer_manual/img/7/actions/delete-hover.svg b/developer_manual/img/7/actions/delete-hover.svg
new file mode 100644
index 000000000..9583ec15b
--- /dev/null
+++ b/developer_manual/img/7/actions/delete-hover.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <path d="m6.5 1-0.5 1h-3c-0.554 0-1 0.446-1 1v1h12v-1c0-0.554-0.446-1-1-1h-3l-0.5-1zm-3.5 4 0.875 9c0.061 0.549 0.5729 1 1.125 1h6c0.55232 0 1.064-0.45102 1.125-1l0.875-9z" fill-rule="evenodd" fill="#d40000"/>
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diff --git a/developer_manual/img/7/actions/delete.svg b/developer_manual/img/7/actions/delete.svg
new file mode 100644
index 000000000..f0a3cd4db
--- /dev/null
+++ b/developer_manual/img/7/actions/delete.svg
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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <path d="m6.5 1-0.5 1h-3c-0.554 0-1 0.446-1 1v1h12v-1c0-0.554-0.446-1-1-1h-3l-0.5-1zm-3.5 4 0.875 9c0.061 0.549 0.5729 1 1.125 1h6c0.55232 0 1.064-0.45102 1.125-1l0.875-9z" fill-rule="evenodd"/>
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diff --git a/developer_manual/img/7/actions/download.svg b/developer_manual/img/7/actions/download.svg
new file mode 100644
index 000000000..0d698bca8
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+ <g transform="translate(0 -1036.4)">
+  <path d="m6,1037.4,4,0,0,7,5,0-7,7-7-7,5,0z"/>
+ </g>
+</svg>
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new file mode 100644
index 000000000..94512a2d4
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+ <g transform="translate(93.422 -466.66)">
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diff --git a/developer_manual/img/7/actions/info.svg b/developer_manual/img/7/actions/info.svg
new file mode 100644
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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+ <defs>
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+   <stop stop-color="#363636" offset="1"/>
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+ </defs>
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+ <g transform="translate(-.14973 7.5119e-7)">
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diff --git a/developer_manual/img/7/actions/lock.svg b/developer_manual/img/7/actions/lock.svg
new file mode 100644
index 000000000..9ea5015c8
--- /dev/null
+++ b/developer_manual/img/7/actions/lock.svg
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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg  PUBLIC '-//W3C//DTD SVG 1.1//EN'  'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'>
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+<path d="m65.5 45v-15c0-16.542-13.458-30-30-30s-30 13.458-30 30v15h-5.5v55h71v-55h-5.5zm-52-15c0-12.131 9.869-22 22-22s22 9.869 22 22v15h-44v-15z"/>
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diff --git a/developer_manual/img/7/actions/logout.svg b/developer_manual/img/7/actions/logout.svg
new file mode 100644
index 000000000..895080dab
--- /dev/null
+++ b/developer_manual/img/7/actions/logout.svg
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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
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diff --git a/developer_manual/img/7/actions/mail.svg b/developer_manual/img/7/actions/mail.svg
new file mode 100644
index 000000000..c01f2c113
--- /dev/null
+++ b/developer_manual/img/7/actions/mail.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <path d="m0.88889 3c-0.49245 0-0.88889 0.3968-0.88889 0.8892v8.2228c0 0.492 0.39644 0.888 0.88889 0.888h14.222c0.493 0 0.889-0.396 0.889-0.888v-8.2228c0-0.4924-0.396-0.8892-0.889-0.8892zm0.75 1.0281 6.0833 6.0833h0.52778l6.1111-6.0833 0.61111 0.61111-3.6389 3.6944 2.75 2.8056-0.61111 0.61111-2.8056-2.8056-2.0278 2.0556h-1.2778l-2.0271-2.0552-2.8055 2.8332-0.6111-0.639 2.7777-2.8054-3.6666-3.6944z"/>
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diff --git a/developer_manual/img/7/actions/more.svg b/developer_manual/img/7/actions/more.svg
new file mode 100644
index 000000000..9ab5d4243
--- /dev/null
+++ b/developer_manual/img/7/actions/more.svg
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.0" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <rect style="color:#000000" fill-opacity="0" height="97.986" width="163.31" y="-32.993" x="-62.897"/>
+ <path d="m3 6c-1.1046 0-2 0.8954-2 2s0.8954 2 2 2 2-0.8954 2-2-0.8954-2-2-2zm5 0c-1.1046 0-2 0.8954-2 2s0.8954 2 2 2 2-0.8954 2-2-0.8954-2-2-2zm5 0c-1.105 0-2 0.8954-2 2s0.895 2 2 2 2-0.8954 2-2-0.895-2-2-2z" fill-rule="evenodd"/>
+</svg>
diff --git a/developer_manual/img/7/actions/password.png b/developer_manual/img/7/actions/password.png
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diff --git a/developer_manual/img/7/actions/password.svg b/developer_manual/img/7/actions/password.svg
new file mode 100644
index 000000000..4b772ae2d
--- /dev/null
+++ b/developer_manual/img/7/actions/password.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" xml:space="preserve" height="16px" width="16px" version="1.1" y="0px" x="0px" xmlns:cc="http://creativecommons.org/ns#" viewBox="0 0 71 100" xmlns:dc="http://purl.org/dc/elements/1.1/">
+<path d="m8 1c-2.2091 0-4 1.7909-4 4v2h-1v7h10v-7h-1v-2c0-2.2091-1.791-4-4-4zm0 2c1.1046 0 2 0.89543 2 2v2h-4v-2c0-1.1046 0.8954-2 2-2z" transform="matrix(6.25,0,0,6.25,-14.5,0)"/>
+</svg>
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new file mode 100644
index 000000000..9c4944223
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+++ b/developer_manual/img/7/actions/pause-big.svg
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+ <g transform="translate(0 -1036.4)">
+  <path d="m1 1037.4v14h5v-14zm9 0v14h5v-14z"/>
+ </g>
+</svg>
diff --git a/developer_manual/img/7/actions/pause.png b/developer_manual/img/7/actions/pause.png
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diff --git a/developer_manual/img/7/actions/pause.svg b/developer_manual/img/7/actions/pause.svg
new file mode 100644
index 000000000..d572ad6f5
--- /dev/null
+++ b/developer_manual/img/7/actions/pause.svg
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g transform="translate(0 -1036.4)">
+  <path d="m3 3v10h4v-10h-4zm6 0v10h4v-10h-4z" transform="translate(0 1036.4)"/>
+ </g>
+</svg>
diff --git a/developer_manual/img/7/actions/play-add.png b/developer_manual/img/7/actions/play-add.png
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diff --git a/developer_manual/img/7/actions/play-add.svg b/developer_manual/img/7/actions/play-add.svg
new file mode 100644
index 000000000..a0dec159d
--- /dev/null
+++ b/developer_manual/img/7/actions/play-add.svg
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g transform="translate(0 -1036.4)">
+  <path d="m2 1037.4 11 6-11 6z"/>
+  <path d="m11 1045.4v2h-2v2h2v2h2v-2h2v-2h-2v-2z"/>
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+</svg>
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diff --git a/developer_manual/img/7/actions/play-big.svg b/developer_manual/img/7/actions/play-big.svg
new file mode 100644
index 000000000..884171ced
--- /dev/null
+++ b/developer_manual/img/7/actions/play-big.svg
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+ <g transform="translate(0 -1036.4)">
+  <path d="m0 1036.4 16 8-16 8z"/>
+ </g>
+</svg>
diff --git a/developer_manual/img/7/actions/play-next.png b/developer_manual/img/7/actions/play-next.png
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diff --git a/developer_manual/img/7/actions/play-next.svg b/developer_manual/img/7/actions/play-next.svg
new file mode 100644
index 000000000..8b3d7d6ef
--- /dev/null
+++ b/developer_manual/img/7/actions/play-next.svg
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
+ <g transform="translate(0 -1036.4)">
+  <path d="m7 1038.4 7 6-7 6z"/>
+  <path d="m2 1038.4 7 6-7 6z"/>
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diff --git a/developer_manual/img/7/actions/play-previous.png b/developer_manual/img/7/actions/play-previous.png
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diff --git a/developer_manual/img/7/actions/play-previous.svg b/developer_manual/img/7/actions/play-previous.svg
new file mode 100644
index 000000000..6210b088c
--- /dev/null
+++ b/developer_manual/img/7/actions/play-previous.svg
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diff --git a/developer_manual/img/7/actions/public.png b/developer_manual/img/7/actions/public.png
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diff --git a/developer_manual/img/7/actions/public.svg b/developer_manual/img/7/actions/public.svg
new file mode 100644
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diff --git a/developer_manual/img/7/actions/rename.svg b/developer_manual/img/7/actions/rename.svg
new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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diff --git a/developer_manual/img/7/actions/shared.png b/developer_manual/img/7/actions/shared.png
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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diff --git a/developer_manual/img/7/filetypes/folder-shared.svg b/developer_manual/img/7/filetypes/folder-shared.svg
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diff --git a/developer_manual/img/7/filetypes/x-office-spreadsheet.png b/developer_manual/img/7/filetypes/x-office-spreadsheet.png
new file mode 100644
index 000000000..9efe6f295
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diff --git a/developer_manual/img/7/filetypes/x-office-spreadsheet.svg b/developer_manual/img/7/filetypes/x-office-spreadsheet.svg
new file mode 100644
index 000000000..aae8f3c95
--- /dev/null
+++ b/developer_manual/img/7/filetypes/x-office-spreadsheet.svg
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://www.w3.org/2000/svg" height="32px" width="32px" version="1.1" xmlns:cc="http://creativecommons.org/ns#" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/">
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+  <g stroke-opacity=".32418" stroke="#2c465d">
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+   <path d="m23.5 16.5h-15"/>
+   <path d="m23.5 19.5h-15"/>
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+ </g>
+ <path opacity=".2" stroke-linejoin="round" d="m8.5005 6.5093 13.946-0.0186" fill-rule="evenodd" stroke="#FFF" stroke-linecap="square" fill="#FFF"/>
+ <g fill="none">
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diff --git a/developer_manual/img/7/googleplay.png b/developer_manual/img/7/googleplay.png
new file mode 100644
index 000000000..9b33dab69
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diff --git a/developer_manual/img/7/image-optimization.sh b/developer_manual/img/7/image-optimization.sh
new file mode 100755
index 000000000..e6374c419
--- /dev/null
+++ b/developer_manual/img/7/image-optimization.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+function recursive_optimize_images() {
+cd $1;
+optipng -o6 -strip all *.png;
+jpegoptim --strip-all *.jpg;
+for svg in `ls *.svg`;
+do
+    mv $svg $svg.opttmp;
+    scour -i $svg.opttmp -o $svg --create-groups --enable-id-stripping --enable-comment-stripping --shorten-ids --remove-metadata;
+done;
+rm *.opttmp
+for dir in `ls -d */`;
+do
+    recursive_optimize_images $dir;
+    cd ..;
+done;
+}
+
+recursive_optimize_images ../../
diff --git a/developer_manual/img/7/loading-dark.gif b/developer_manual/img/7/loading-dark.gif
new file mode 100644
index 000000000..13f0f64ea
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diff --git a/developer_manual/img/7/loading-small.gif b/developer_manual/img/7/loading-small.gif
new file mode 100644
index 000000000..5025f0bed
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diff --git a/developer_manual/img/7/loading.gif b/developer_manual/img/7/loading.gif
new file mode 100644
index 000000000..f8f3dff6f
Binary files /dev/null and b/developer_manual/img/7/loading.gif differ
diff --git a/developer_manual/img/7/logo-mail.gif b/developer_manual/img/7/logo-mail.gif
new file mode 100644
index 000000000..f1dd10845
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diff --git a/developer_manual/img/7/logo-wide.png b/developer_manual/img/7/logo-wide.png
new file mode 100644
index 000000000..b15c76ecb
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diff --git a/developer_manual/img/7/logo-wide.svg b/developer_manual/img/7/logo-wide.svg
new file mode 100644
index 000000000..bacba6755
--- /dev/null
+++ b/developer_manual/img/7/logo-wide.svg
@@ -0,0 +1,3 @@
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