make it easier to tell where the ball is going

graphics/arrow.svg

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Uploaded to: SVG Repo, www.svgrepo.com, Generator: SVG Repo Mixer Tools -->
+<svg fill="#FFFFFF" height="800px" width="800px" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+	 viewBox="0 0 330 330" xml:space="preserve">
+<path id="XMLID_222_" d="M250.606,154.389l-150-149.996c-5.857-5.858-15.355-5.858-21.213,0.001
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+	C82.322,328.536,86.161,330,90,330s7.678-1.464,10.607-4.394l149.999-150.004c2.814-2.813,4.394-6.628,4.394-10.606
+	C255,161.018,253.42,157.202,250.606,154.389z"/>
+</svg>

graphics/arrow.svg.import

@@ -0,0 +1,37 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://ctjugvy1v3y6b"
+path="res://.godot/imported/arrow.svg-920a87ad5eb67570115f11e52bd4e1ec.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://graphics/arrow.svg"
+dest_files=["res://.godot/imported/arrow.svg-920a87ad5eb67570115f11e52bd4e1ec.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
+svg/scale=1.0
+editor/scale_with_editor_scale=false
+editor/convert_colors_with_editor_theme=false