Worked on the styling. Color scheme is not good but it's applied and can be easily modified by changing colors in color.xml
Replaced AndroidAnnotations fragment to allow hiding of dialog title.
Added last missing styles.
Switched to blue color scheme.
Implemented resume handler.
Added fix for non-integer calculations in exercise generator.
Added very simple app icon.
Added about activity
Added info about icon source.
Added support for english.
Added advertisment images for play store. Added privacy statement.