SMBX2 Tileset Importer (BETA 2)

Version 0.2 is here!

This version mainly adds improvements to the grid. It also fixes many bugs and addresses many issues that users were encountering. Thanks to everyone who submitted bug reports and feature requests for the feedback!

Changelog:

Features:

• The grid can now be offset horizontally and/or vertically.
• The grid can now have padding added between cells.
• The grid can now have differing width and height. To do this, enter wxh into the Grid Size entry (i.e. 32x16).
• Added scrollbars for large tileset images. These are activated if the displayed image becomes larger than
  800x600 pixels. In addition to the scrollbars, the image can be scrolled vertically with the scroll wheel, and it
  can be scrolled horizontally with Shift + scroll wheel.
• Added a Tileset Name option. This changes the name the tileset will have in PGE/Moondust, as well as the name of
  the generated tileset files.
• The program can now be built on Linux and MacOS (thanks to some contributions from Wohlstand).

Bugfixes:

• Exported tiles in the 751-1000 range will now show the correct images in PGE/Moondust.
• Removed block-26 from the default ID list as it is used by playerblocktop NPCs. Nice one, Redigit.
• Grid Size now shows the correct value on file load.
• A prompt will now appear when attempting to close the program with unsaved changes.
• All blocks will now default to having no item inside, even if the original block had one.
• The scroll wheel can no longer be used on Comboboxes, because it was causing issues.