diff --git a/Thesis_Defense_Cholidis.tex b/Thesis_Defense_Cholidis.tex
index 25a3197..a95eec2 100644
--- a/Thesis_Defense_Cholidis.tex
+++ b/Thesis_Defense_Cholidis.tex
@@ -64,7 +64,6 @@
 
 %-------------------------------------------------------------The next statement creates the title page.
 % \frame[noframenumbering]{\titlepage}
-\setBGColor{DarkGray}
 \begin{frame}[plain,noframenumbering]
     % \vspace{15pt} % good enough to not interfere with the background
     \vspace{1.5cm} % same height as the default
@@ -77,7 +76,6 @@
 
 %-------------------------------------------------------------Slide
 \setLayout{vertical} % This command define the layout. 'vertical' can be replace with 'horizontal', 'blank, 'mainpoint', 'titlepage'
-\setBGColor{UFGBlue}
 \begin{frame}[allowframebreaks] % allowframebreaks is used to split the content in multiple slides
     \frametitle{Επισκόπηση}
     % \tableofcontents[hideallsubsections]
@@ -634,7 +632,7 @@ spy using outlines={
         \centering
         \begin{subfigure}{0.45\textwidth}
             \centering
-            \includegraphics[width=.7\textwidth]{lib/logos/logo_bb.png}
+            \includegraphics[width=.7\textwidth]{lib/logos/logo_bb.jpg}
         \end{subfigure}
         \qquad
         \begin{subfigure}{0.45\textwidth}
diff --git a/beamerthemeUfg.sty b/beamerthemeUfg.sty
index 8197173..8afdc08 100644
--- a/beamerthemeUfg.sty
+++ b/beamerthemeUfg.sty
@@ -31,12 +31,12 @@
 }
 
 \newcommand{\setLogos}[2]{
-    \pgfdeclareimage[height=18mm]{logo1_title}{#1}
-    \pgfdeclareimage[height=12mm]{logo2_small}{#2}
-    \pgfdeclareimage[width=20mm]{logo2_medium}{#2}
+    \pgfdeclareimage[height=15mm]{logo1_title}{#1} % Aegean logo in title page
+    \pgfdeclareimage[height=12mm]{logo2_small}{#2} % SecDep logo in horizontal layout
+    \pgfdeclareimage[width=20mm]{logo2_medium}{#2} % SecDep logo in vertical layout
 
     % set UFG logo
-    \pgfdeclareimage[height=25mm]{logo3}{lib/logos/secdep_logo.png}
+    \pgfdeclareimage[height=25mm]{logo3}{lib/logos/secdep_logo.png} % SecDep logo in title page
 }
 
 \newcommand{\setDefaultConfig}{
diff --git a/lib/logos/logo_aegean.png b/lib/logos/logo_aegean.png
index 76de2fb..3966ea9 100644
Binary files a/lib/logos/logo_aegean.png and b/lib/logos/logo_aegean.png differ
diff --git a/lib/logos/logo_aegeanBlue.png b/lib/logos/logo_aegeanBlue.png
new file mode 100644
index 0000000..720c86d
Binary files /dev/null and b/lib/logos/logo_aegeanBlue.png differ
diff --git a/lib/logos/logo_aegeanOLD.png b/lib/logos/logo_aegeanOLD.png
new file mode 100644
index 0000000..76de2fb
Binary files /dev/null and b/lib/logos/logo_aegeanOLD.png differ
diff --git a/lib/logos/logo_aegeanOlder.png b/lib/logos/logo_aegeanOlder.png
new file mode 100644
index 0000000..c25ef9e
Binary files /dev/null and b/lib/logos/logo_aegeanOlder.png differ
diff --git a/lib/logos/logo_bb.jpg b/lib/logos/logo_bb.jpg
new file mode 100644
index 0000000..99c203d
Binary files /dev/null and b/lib/logos/logo_bb.jpg differ
diff --git a/lib/logos/logo_bb.png b/lib/logos/logo_bbOLD.png
similarity index 100%
rename from lib/logos/logo_bb.png
rename to lib/logos/logo_bbOLD.png