diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000000000000000000000000000000000000..e32513cc94131b2f2f163b024aaed0a18858ad37
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,15 @@
+## License
+GNU General Public License, Version 3, 29 June 2007
+
+Copyright © 2021 Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
+
+RST-Evaluation is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+RST-Evaluation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+## Contact
+* Michael Rudolf;
+rudolf@geo.tu-darmstadt.de
+https://orcid.org/0000-0002-5077-5221
diff --git a/Legacy/FileConversion/ConvertAsciitoTXT.py b/Legacy/FileConversion/ConvertAsciitoTXT.py
index 7c4de09123597224ad87969c34a4c0c808289545..045673202c201e53db3d286c9cf32e4d49197d76 100644
--- a/Legacy/FileConversion/ConvertAsciitoTXT.py
+++ b/Legacy/FileConversion/ConvertAsciitoTXT.py
@@ -1,4 +1,18 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """
 Converts all *.asc files in the folder given in `path_in` and creates a time
 series plot in the folder `path_out`. This script requires `rstevaluation` to
diff --git a/Legacy/FileConversion/ConvertTDMStoTXT.py b/Legacy/FileConversion/ConvertTDMStoTXT.py
index 9747a52dbf779daa2c00356d5085765deadfe4ec..5c461e314fa63f86c88c0c0ec501d662147670b6 100644
--- a/Legacy/FileConversion/ConvertTDMStoTXT.py
+++ b/Legacy/FileConversion/ConvertTDMStoTXT.py
@@ -1,4 +1,18 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """
 Converts all *.tdms files in the folder given in `path_in` and creates a time
 series plot in the folder `path_out`. This script requires `rstevaluation` to
diff --git a/Legacy/FileConversion/ConvertVSTTDMStoTXT.py b/Legacy/FileConversion/ConvertVSTTDMStoTXT.py
index 6985bc17c7a8ff008a24704c64032ccd107e2f66..3253aa5b10013407257f3c11d7715a93a594a388 100644
--- a/Legacy/FileConversion/ConvertVSTTDMStoTXT.py
+++ b/Legacy/FileConversion/ConvertVSTTDMStoTXT.py
@@ -1,4 +1,18 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """
 Converts all *.tdms files in the folder given in `path_in` and creates a
 velocity stepping plot for each of them in the folder `path_out`. This script
diff --git a/Legacy/ManualPicking/evaluate_picks.py b/Legacy/ManualPicking/evaluate_picks.py
index a897c2de3db325aedc5963ceeae36ca08afea3b1..f256072b0f5e37223c0e90e776b58d4de6ab6ecd 100644
--- a/Legacy/ManualPicking/evaluate_picks.py
+++ b/Legacy/ManualPicking/evaluate_picks.py
@@ -1,4 +1,18 @@
 #!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 
 import h5py
 import matplotlib as mpl
diff --git a/Legacy/ManualPicking/manual_pick.py b/Legacy/ManualPicking/manual_pick.py
index 5df138110e2d6041392c6f47e53cf8a39c7621d7..32e27076650642422583b33582eed375861149ff 100644
--- a/Legacy/ManualPicking/manual_pick.py
+++ b/Legacy/ManualPicking/manual_pick.py
@@ -1,4 +1,18 @@
 #!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 
 import h5py
 import matplotlib as mpl
diff --git a/Legacy/ManualPicking/rstmanpick.py b/Legacy/ManualPicking/rstmanpick.py
index 3e47fcb4944c6355a7d82f67564eb9ac65794d99..c6a99377fb917df8c1736544c41c2238ec8df267 100644
--- a/Legacy/ManualPicking/rstmanpick.py
+++ b/Legacy/ManualPicking/rstmanpick.py
@@ -1,4 +1,18 @@
 #!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 
 '''
 rstmanpick.py
diff --git a/Legacy/RSTanalysis/RST/Scripts/RSTanalysis.py b/Legacy/RSTanalysis/RST/Scripts/RSTanalysis.py
index 26d02eed2c84d377c8d19da6e4c70e8598f11a50..62dae23f721d03cd1fff5a08ea2495e95aaefb24 100644
--- a/Legacy/RSTanalysis/RST/Scripts/RSTanalysis.py
+++ b/Legacy/RSTanalysis/RST/Scripts/RSTanalysis.py
@@ -1,4 +1,18 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 '''
 Spyder Editor
 Authors: Michael Warsitzka, Matthias Rosenau, Malte Ritter, Michael Rudolf
diff --git a/Legacy/RSTanalysis/VST/Scripts/VSTanalysis.py b/Legacy/RSTanalysis/VST/Scripts/VSTanalysis.py
index 5c259a0add7da6b1e5543bfb43ce99d72c472626..26a16c26659808f986b26ed9d7c511b4eaa19897 100644
--- a/Legacy/RSTanalysis/VST/Scripts/VSTanalysis.py
+++ b/Legacy/RSTanalysis/VST/Scripts/VSTanalysis.py
@@ -1,4 +1,18 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """
 Spyder Editor
 Authors: Michael Warsitzka, Matthias Rosenau, Malte Ritter, Michael Rudolf
diff --git a/build.cmd b/build.cmd
index 73891b8578b840889d234fe656333c9a3224816d..522c52f6be31a0339680ab73287404bb53bc9012 100644
--- a/build.cmd
+++ b/build.cmd
@@ -2,10 +2,10 @@
 :: for windows.
 @ECHO OFF
 :: Compute requirements.txt
-pipreqs --no-pin --force --print rstevaluation >> requirements.txt
-@REM pipreqs --no-pin --print FileConversion >> requirements.txt
-@REM pipreqs --no-pin --print ManualPicking >> requirements.txt
-@REM pipreqs --no-pin --print RSTAnalysis >> requirements.txt
+pipreqs --mode no-pin --force rstevaluation
+@REM pipreqs --mode no-pin --print FileConversion >> requirements.txt
+@REM pipreqs --mode no-pin --print ManualPicking >> requirements.txt
+@REM pipreqs --mode no-pin --print RSTAnalysis >> requirements.txt
 
 :: Removes duplicates in requirements.txt
 setlocal disableDelayedExpansion
diff --git a/requirements.txt b/requirements.txt
index aa0e4eac9d006e46daaa810013b6e0a1d38e6fc6..8f835e3d36157eab28887412f6fc1bb6a31437c7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,12 @@
+animation
+h5py
 matplotlib
-nose
 npTDMS
 numpy
 pandas
 scipy
+setuptools
+terminal_animation
 tqdm
-traitlets
 uncertainties
-uncertainties.egg
 pyqt5
-terminal-animation
\ No newline at end of file
diff --git a/rstevaluation/rstevaluation/RST_pick_GUI.py b/rstevaluation/rstevaluation/RST_pick_GUI.py
index 703a8b52cface0881f101f3c1f70abb800075932..a4db29510f53e3249afc29fd3d6e19b3f958f688 100644
--- a/rstevaluation/rstevaluation/RST_pick_GUI.py
+++ b/rstevaluation/rstevaluation/RST_pick_GUI.py
@@ -1,5 +1,18 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 # @Author: M. Rudolf, M. Warsitzka
 # @Date:   2019-02-20 12:00:00
 # @Last Modified by:   M. Rudolf
diff --git a/rstevaluation/rstevaluation/__main__.py b/rstevaluation/rstevaluation/__main__.py
index 9c7ae061912183ab44171a59db77125858d6b6ef..71009dc4f25b348d2b70d17cd031d2d2534e5591 100644
--- a/rstevaluation/rstevaluation/__main__.py
+++ b/rstevaluation/rstevaluation/__main__.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Runs rst-evaluation with a GUI """
 from rstevaluation import RST_pick_GUI
 
diff --git a/rstevaluation/rstevaluation/analysis.py b/rstevaluation/rstevaluation/analysis.py
index 56824ca0606afe2702f9192e169d3c2b75b3c947..fb78220e3ee69a5fb1220809366f5274abb9064f 100644
--- a/rstevaluation/rstevaluation/analysis.py
+++ b/rstevaluation/rstevaluation/analysis.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Advanced data analysis functions for ringshear tester data """
 import numpy as np
 import scipy.optimize as spopt
diff --git a/rstevaluation/rstevaluation/classes.py b/rstevaluation/rstevaluation/classes.py
index c8bb0c44c28a6b6d5f7a59765342043b59a2079c..e51d885f872e577a89273f38026ee723d4193ca3 100644
--- a/rstevaluation/rstevaluation/classes.py
+++ b/rstevaluation/rstevaluation/classes.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Contains some custom classes for the use with the main GUI """
 
 import tkinter as tk
diff --git a/rstevaluation/rstevaluation/data.py b/rstevaluation/rstevaluation/data.py
index 52ce91cafb8742961b1050f527e4d475b4d94bc4..afe66cd0b491442d37cc06f51a9723e36145afe0 100644
--- a/rstevaluation/rstevaluation/data.py
+++ b/rstevaluation/rstevaluation/data.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Functions for data handling such as filtering, downsampling and fitting """
 
 import nptdms
diff --git a/rstevaluation/rstevaluation/files.py b/rstevaluation/rstevaluation/files.py
index 5a9254e056a07f511605ef9331111198b24d3f3c..117f62d5f250e56719ed341919b4736f98a764c7 100644
--- a/rstevaluation/rstevaluation/files.py
+++ b/rstevaluation/rstevaluation/files.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Functions for file operations for rst-evaluation """
 
 import codecs
@@ -299,11 +314,18 @@ def saveStrength(path, name, strength):
     label = ['_peak', '_dynamic', '_reactivation']
     for i in range(0, 3):
         Stren = np.vstack((strength[0], strength[i+1]))
-        header_stress = 'Normal stress [Pa]'+'\t'+'Shear strength [Pa]'
+        header_stress = (
+            'Normal stress [Pa]\tShear strength [Pa]\t'
+            + 'Stddev.Shear strength [Pa]'
+        )
         with open(os.path.join(path, name+label[i]+'.txt'), "w") as f:
             f.write(header_stress+'\n')
             for strdat in Stren.T:
-                f.write('{:}\t{:fP}'.format(strdat[0], strdat[1]))
+                sign = str(strdat[0])
+                stren = '{:f}'.format(strdat[1])
+                stren = stren.replace('+/-', '\t')
+
+                f.write('%s\t%s\n' % (sign, stren))
         f.closed
 
 
@@ -317,7 +339,7 @@ def saveFric(path, name, fricmut, fricstd):
              '\t' + \
              'Cohesion [Pa]' + \
              '\t' + \
-             'Std deviation (Coh.) [Pa]'
+             'Std. deviation (Coh.) [Pa]'
     with open(os.path.join(path, name+'_fricstd.txt'), 'w') as f:
         f.write(header+'\n')
         f_string = ''
@@ -325,24 +347,24 @@ def saveFric(path, name, fricmut, fricstd):
         cferr = unc.ufloat(fricstd[0][2], fricstd[0][3])
         f_string += (
             'Peak friction:' +
-            '\t{:fP}'.format(mferr) +
-            '\t{:fP}'.format(cferr) +
+            '\t{:f}'.format(mferr).replace('+/-', '\t') +
+            '\t{:f}'.format(cferr).replace('+/-', '\t') +
             '\n'
         )
         mferr = unc.ufloat(fricstd[1][0], fricstd[1][1])
         cferr = unc.ufloat(fricstd[1][2], fricstd[1][3])
         f_string += (
             'Dynamic friction:' +
-            '\t{:fP}'.format(mferr) +
-            '\t{:fP}'.format(cferr) +
+            '\t{:f}'.format(mferr).replace('+/-', '\t') +
+            '\t{:f}'.format(cferr).replace('+/-', '\t') +
             '\n'
         )
         mferr = unc.ufloat(fricstd[2][0], fricstd[2][1])
         cferr = unc.ufloat(fricstd[2][2], fricstd[2][3])
         f_string += (
             'Reactivation friction:' +
-            '\t{:fP}'.format(mferr) +
-            '\t{:fP}'.format(cferr) +
+            '\t{:f}'.format(mferr).replace('+/-', '\t') +
+            '\t{:f}'.format(cferr).replace('+/-', '\t') +
             '\n'
         )
         f.write(f_string)
@@ -352,20 +374,20 @@ def saveFric(path, name, fricmut, fricstd):
         f_string = ''
         f_string += (
             'Peak friction:' +
-            '\t{:fP}'.format(fricmut[0][0]) +
-            '\t{:fP}'.format(fricmut[0][1]) +
+            '\t{:f}'.format(fricmut[0][0]).replace('+/-', '\t') +
+            '\t{:f}'.format(fricmut[0][1]).replace('+/-', '\t') +
             '\n'
         )
         f_string += (
             'Dynamic friction:' +
-            '\t{:fP}'.format(fricmut[1][0]) +
-            '\t{:fP}'.format(fricmut[1][1]) +
+            '\t{:f}'.format(fricmut[1][0]).replace('+/-', '\t') +
+            '\t{:f}'.format(fricmut[1][1]).replace('+/-', '\t') +
             '\n'
         )
         f_string += (
             'Reactivation friction:' +
-            '\t{:fP}'.format(fricmut[2][0]) +
-            '\t{:fP}'.format(fricmut[2][1]) +
+            '\t{:f}'.format(fricmut[2][0]).replace('+/-', '\t') +
+            '\t{:f}'.format(fricmut[2][1]).replace('+/-', '\t') +
             '\n'
         )
         f.write(f_string)
diff --git a/rstevaluation/rstevaluation/get_icons.py b/rstevaluation/rstevaluation/get_icons.py
index f75bf2341fdcb8147220515159ce90fd5b69e39a..43649b4a5c4b5f9d393a65703ff8b90e2f3ce8ce 100644
--- a/rstevaluation/rstevaluation/get_icons.py
+++ b/rstevaluation/rstevaluation/get_icons.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Provides PhotoImage objects for all images """
 
 import tkinter as tk
diff --git a/rstevaluation/rstevaluation/mainGUI.py b/rstevaluation/rstevaluation/mainGUI.py
index 109ee73f19d12282151a9888cb454507b2314330..77d38c489f5f978d60c05597ebe98ba378a68cd5 100644
--- a/rstevaluation/rstevaluation/mainGUI.py
+++ b/rstevaluation/rstevaluation/mainGUI.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Contains class for main graphical user interface. """
 import configparser
 import json
diff --git a/rstevaluation/rstevaluation/picking.py b/rstevaluation/rstevaluation/picking.py
index bceb13301abcf33aa5d02faeea72b0b7d3fb6f94..16d4430ddf9900496e8d6e965c9324de5084fa90 100644
--- a/rstevaluation/rstevaluation/picking.py
+++ b/rstevaluation/rstevaluation/picking.py
@@ -1,4 +1,18 @@
-# -*- coding: utf-8 -*-
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """
 Picking functions for rst-evaluation.
 """
@@ -266,9 +280,10 @@ def _pick_base_plot(cur_dat, config):
         if (np.abs(diffstress)/normstress) > 0.05:
             ax.annotate(
                 '! Predefined normal stress difference > 5 % !',
-                (.5, .9),
+                (.5, .99),
                 xycoords='axes fraction',
                 horizontalalignment='center',
+                verticalalignment='top',
                 color='r'
             )
     else:
diff --git a/rstevaluation/rstevaluation/plots.py b/rstevaluation/rstevaluation/plots.py
index aabda1eb7c1f9e4efd9b1a96f8bb9437702c8405..14fc5a183120cda961255efae7a6a43653a35e33 100644
--- a/rstevaluation/rstevaluation/plots.py
+++ b/rstevaluation/rstevaluation/plots.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Plotting functions for rst-evaluation """
 import os
 
diff --git a/rstevaluation/rstevaluation/processing.py b/rstevaluation/rstevaluation/processing.py
index 6bd263c56586cf296a416c5f1047e8cdd5dde9da..b8718b9a503d8a1f85aa3e3232a2b022f54162bd 100644
--- a/rstevaluation/rstevaluation/processing.py
+++ b/rstevaluation/rstevaluation/processing.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """
 Contains functions for full processing of the data.
 """
diff --git a/rstevaluation/tests/batch_mode.py b/rstevaluation/tests/batch_mode.py
index 26deeaed8853d4c753d63717860d6c07f012d59e..21c592305bde02de578c889083d2272d39391a4d 100644
--- a/rstevaluation/tests/batch_mode.py
+++ b/rstevaluation/tests/batch_mode.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 """ Runs rst-evaluation in batch mode to quickly go over multiple folders """
 
 import configparser
diff --git a/rstevaluation/tests/function_timing.py b/rstevaluation/tests/function_timing.py
index eb52de2feab041299b91fd729295a6c29adac2b7..81d42fa2ac5000477262c221f9e0124ea591bf1b 100644
--- a/rstevaluation/tests/function_timing.py
+++ b/rstevaluation/tests/function_timing.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 import numpy as np
 import rstevaluation.tools.analysis as rstanalysis
 
diff --git a/rstevaluation/tests/tdms_props.py b/rstevaluation/tests/tdms_props.py
index 243f523d064fb3bec83a8aab5e2c4b0dcb08e1b9..c4bf2a8157afd054571d1e6205681fbba1910b8c 100644
--- a/rstevaluation/tests/tdms_props.py
+++ b/rstevaluation/tests/tdms_props.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 import nptdms
 import numpy as np
 
diff --git a/rstevaluation/tests/test.py b/rstevaluation/tests/test.py
index 24e2b4437e940bc11e3768baccdf9432b85c8d83..350c8e07432c78efa636070c6b6457a88705f3d3 100644
--- a/rstevaluation/tests/test.py
+++ b/rstevaluation/tests/test.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 import matplotlib.collections as mplcoll
 import matplotlib.pyplot as plt
 import numpy as np
diff --git a/setup.cfg b/setup.cfg
index f07191dbb84dd2fe0ce605067a92152c917ca61a..c0eb6e64f00abc22faa8d20b42efd44af83274a6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = rstevaluation
-version = 0.3.0
+version = 0.3.1
 author = M. Warsitzka, M. Rudolf
 author-email = michael.rudolf@gfz-potsdam.de
 summary = Package to work with ring shear tester data from the Helmholtz Laboratory for Tectonic Modelling at the German Research Centre for Geoscience.
diff --git a/setup.py b/setup.py
index 3c5ce2d0b33e8581b2f5441f7cd040ea1726ba55..184042344d2757a161398ec5249dd98e7b3d4311 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,18 @@
+#!/usr/bin/env python3
+# This file is part of rstevaluation.
+
+# rstevaluation is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# rstevaluation is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with rstevaluation. If not, see <https://www.gnu.org/licenses/>.
 from os import path
 
 import setuptools