Subtitle Workshop 6.3.1

What's new in this version:

- Audio waveform added. Download of the FFmpeg tools needed before first usage (otherwise the message "FFmpeg was not found in your system, please download it (menu Settings -> Settings -> Waveform -> Download FFmpeg tools)." will appear when first creation of a waveform): menu Settings -> Settings -> Waveform -> Download FFmpeg tools.
- The menuitem images are grayed out when the menuitem is not enabled also in darkmode now.
- Adapted the menu widths in both light and darkmode to be more compact.
- Adapted the menu colors to be compliant with Windows7
- Adapted the color of the subtitle edit fields in darkmode to be dark when disabled
- Made sure the left colum of the subtitle list is also dark in dark mode now
- Renamed the 'dark' mode in the settings program window to 'Invert colors'
- Corrected an error: the colour of 'Indicate overlapping subtitles in Pause box' was not remembered correctly.
- Added a number of adaptations of items on the main window to a font size change in settings.
- Removed possible flicker in the time indicators on the video preview panel.
- Solved ticket #37: Added an option to disable the double click on 'Start Subtitle'
- Spanish (Latin) language added
- Slovak langiage added
- Croation language updated
- Solved: "Nullpointer reference after batch converting"
- Solved: "Batch file conversion output file type mismatch"
- Solved: Cannot use the CTRL+A (to select all text) inside the path input fields in BatchConvert
- Solved: Context menus use system foreground colour for text, but not the background colour", at least the Templayer part
- Prevented the subtitle to be shifted out of range.
- Changed the text 'Select &zero' to 'Select &none'. Bulgarian, Croation, Greek, Russian, Slovak ans Spanish to be checked.
- Solved a subtitle divide problem
- Entered the current video position in the 'Given Time' and 'Given Frame' entries when opening the 'Split Subtitle' window.