diff --git a/lcl/btn_icons.res b/lcl/btn_icons.res
index bb69b7c303..e44f3900cf 100644
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diff --git a/lcl/images/btncalculator.png b/lcl/images/btncalculator.png
index 701a60a5a4..b84102c2dd 100644
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diff --git a/lcl/images/btncalendar.png b/lcl/images/btncalendar.png
index 658913852d..2150bef6a3 100644
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diff --git a/lcl/images/btnfiltercancel.png b/lcl/images/btnfiltercancel.png
index 273999214b..b61e56684f 100644
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diff --git a/lcl/images/btnseldir.png b/lcl/images/btnseldir.png
index 784e8fa482..4ca8413148 100644
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diff --git a/lcl/images/btnselfile.png b/lcl/images/btnselfile.png
index 1ef6e11438..c6c5fa3355 100644
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diff --git a/lcl/images/buttons/btn_abort.png b/lcl/images/buttons/btn_abort.png
index cb5da54ce6..58ac7ed56c 100644
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diff --git a/lcl/images/buttons/btn_all.png b/lcl/images/buttons/btn_all.png
index c7c9928d95..2029990038 100644
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diff --git a/lcl/images/buttons/btn_cancel.png b/lcl/images/buttons/btn_cancel.png
index d0fd5b9a25..ec846bd2dd 100644
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diff --git a/lcl/images/buttons/btn_close.png b/lcl/images/buttons/btn_close.png
index 34e1efcb67..9e20a80394 100644
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diff --git a/lcl/images/buttons/btn_help.png b/lcl/images/buttons/btn_help.png
index 418d20724a..63a7069ff9 100644
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diff --git a/lcl/images/buttons/btn_ignore.png b/lcl/images/buttons/btn_ignore.png
index 4ef2a9fdc8..faff7bf65a 100644
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diff --git a/lcl/images/buttons/btn_no.png b/lcl/images/buttons/btn_no.png
index 9d39a888fd..9dde6271ba 100644
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diff --git a/lcl/images/buttons/btn_ok.png b/lcl/images/buttons/btn_ok.png
index a9925a06ab..6241f67c34 100644
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diff --git a/lcl/images/buttons/btn_retry.png b/lcl/images/buttons/btn_retry.png
index d3087dfc92..5a3e65e12a 100644
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diff --git a/lcl/images/buttons/btn_yes.png b/lcl/images/buttons/btn_yes.png
index 9407cb25b2..6241f67c34 100644
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diff --git a/lcl/images/copyright.txt b/lcl/images/copyright.txt
index 719cd36060..65f847e749 100644
--- a/lcl/images/copyright.txt
+++ b/lcl/images/copyright.txt
@@ -1,18 +1,11 @@
 LICENSE AND COPYRIGHT INFORMATION ABOUT IMAGES USED IN LCL
 ----------------------------------------------------------
 
-Silk icon set http://www.famfamfam.com/lab/icons/silk/ - CC 2.5/3.0 license
-- buttons/*
-- wince/wincedialog_cancel.png
+Tango https://commons.wikimedia.org/wiki/Tango_icons - public domain
+PNG versions: https://www.iconfinder.com/iconsets/tango
+- dialogs/*
 - btnselfile.png
 - btnseldir.png
-- dbnavpost.png
-- dbnavedit.png
-- btncalendar.png
-- btncalculator.png
-
-Tango https://commons.wikimedia.org/wiki/Tango_icons - public domain
-- dialogs/*
 - dbnavcancel.png
 - dbnavdelete.png
 - dbnavrefresh.png
@@ -21,9 +14,19 @@ Tango https://commons.wikimedia.org/wiki/Tango_icons - public domain
 - dbnavinsert.png
 - dbnavfirst.png
 - dbnavprior.png
-- btntime.png (modified by Michael Fuchs)
+- btntime.png (modified Appointment.svg by Michael Fuchs)
+- btncalendar.png
+- btncalculator.png
+- btnfiltercancel.png
 - sortasc.png
 - sortdesc.png
+- dbnavpost.png (modified Text-x-generic-apply.svg by Ondrej Pokorny)
+- dbnavedit.png (modified Edit-metadata.svg by Ondrej Pokorny)
+- buttons/*
+- button/btn_ok.png (modified Text-x-generic-apply.svg by Ondrej Pokorny)
+- button/btn_yes.png (modified Text-x-generic-apply.svg by Ondrej Pokorny)
+- button/btn_cancel.png (modified Process-stop.svg by Ondrej Pokorny)
+- wince/wincedialog_cancel.png
 
 
 LCL license (created for LCL)
@@ -43,4 +46,12 @@ LCL license (created for LCL)
 Unknown (added by Paul)
 - cursors/*
 - dock/*
-- btnfiltercancel.png
+
+
+
+ADDING IMAGES TO LCL POLICY
+---------------------------
+All images in the LCL must be public domain or especially created for the LCL and under the LCL license.
+When you are adding images to the LCL add information about their origin here in the list and also in SVN commit log.
+
+!!! Do not add images under other licenses (CC, GPL, LGPL ...) or unknown origin into the LCL !!!
\ No newline at end of file
diff --git a/lcl/images/dbnavedit.png b/lcl/images/dbnavedit.png
index 0bfecd50ee..cd18db91c4 100644
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diff --git a/lcl/images/dbnavpost.png b/lcl/images/dbnavpost.png
index a9925a06ab..6241f67c34 100644
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diff --git a/lcl/images/sortasc.png b/lcl/images/sortasc.png
index 163ed57c86..8793c2e2ef 100644
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diff --git a/lcl/images/sortdesc.png b/lcl/images/sortdesc.png
index bd703fdefb..866000335b 100644
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diff --git a/lcl/images/wince/wincedialog_cancel.png b/lcl/images/wince/wincedialog_cancel.png
index d0fd5b9a25..ec846bd2dd 100644
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diff --git a/lcl/lcl_dbnav_images.res b/lcl/lcl_dbnav_images.res
index 490c0ea9ea..89c141e190 100644
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diff --git a/lcl/lcl_edbtnimg.res b/lcl/lcl_edbtnimg.res
index 419d8fe46d..79c9493662 100644
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diff --git a/lcl/lcl_grid_images.res b/lcl/lcl_grid_images.res
index 1962c2d54d..b73831057b 100644
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