some stuff

Assets/Docs/sources.txt

@@ -1,15 +1,14 @@
-Heatmap_gradient.png (unused) - https://www.andrewnoske.com/wiki/Code_-_heatmaps_and_color_gradients
-gdc_2012_released.pdf (unused) - https://directtovideo.wordpress.com/2012/03/15/get-my-slides-from-gdc2012/
-	(from https://gamedev.stackexchange.com/a/31780)
-
-UI Icons: https://kenney.nl/assets/game-icons
+UI Icons: https://fonts.google.com/icons?icon.set=Material+Symbols&icon.style=Rounded&icon.query=close
 
 Rasterization algorithm for mouse drawing (CameraController.DrawLine) based on:
 https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm#All_cases
 
-Draggable manipulator for popups (): https://gist.github.com/shanecelis/b6fb3fe8ed5356be1a3aeeb9e7d2c145
-
 Color palettes:
 https://lospec.com/palette-list/blackwhitered
 https://lospec.com/palette-list/cold-light
-https://lospec.com/palette-list/titanstone
+https://lospec.com/palette-list/titanstone
+
+Unused:
+Heatmap_gradient.png (unused) - https://www.andrewnoske.com/wiki/Code_-_heatmaps_and_color_gradients
+gdc_2012_released.pdf (unused) - https://directtovideo.wordpress.com/2012/03/15/get-my-slides-from-gdc2012/
+	(from https://gamedev.stackexchange.com/a/31780)