Tentative list of images

Just a quick thing put together as a reference while working... I will need to add a reference (and license) as to where I found these.

Images Explanation
The image, which could be used in reference to building a wall, is most likely not needed inside the world. License: LPGL. Crystal
The image represents a beeper; it could be used, outside of the world boundaries, to represent the number of beepers carried. License: LPGL. Crystal
The image represents the making of a beeper; it is most likely not needed inside the world. License: LPGL. Crystal
Candidate image for beeper. Perhaps use with numbers from 1 to 9. License: LPGL. Crystal
Candidate image for beeper; perhaps use for 10 or more beepers. License: LPGL. Crystal
Start program button. License: LPGL. Crystal
Start program button disabled while running. License: LPGL. Crystal
Stop program button; only shown while running. License: GPL. Modified Nuvola Icons
Reload/refresh button; only shown while program not running. License: LPGL. Crystal
Reeborg moving East (towards the right of the screen).
Reeborg moving North (towards the top of the screen).
Reeborg moving West (towards the left of the screen).
Reeborg moving South (towards the bottom of the screen).
Basic home, when Reeborg is moving about. License: GPL. Nuvola Icons
Candidate image for home, when Reeborg is in position to enter it. License: GPL. Modified Nuvola Icons
Candidate image for home, when Reeborg is inside, ready to go out. License: GPL. Modified Nuvola Icons