Made the frame move buttons get disabled when you can't move frames

assets/graphics/dark_themes/timeline/move_arrow_disabled.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/move_arrow_disabled.png-52a5629e1ae2c34034b70ce489237c77.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/graphics/dark_themes/timeline/move_arrow_disabled.png"
+dest_files=[ "res://.import/move_arrow_disabled.png-52a5629e1ae2c34034b70ce489237c77.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=false
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

assets/graphics/light_themes/timeline/move_arrow_disabled.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/move_arrow_disabled.png-c34712e4f610edb14fd2ab4a585a557a.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/graphics/light_themes/timeline/move_arrow_disabled.png"
+dest_files=[ "res://.import/move_arrow_disabled.png-c34712e4f610edb14fd2ab4a585a557a.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=false
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

src/Autoload/Global.gd

@@ -139,6 +139,8 @@ var tag_container : Control
 var tag_dialog : AcceptDialog
 
 var remove_frame_button : BaseButton
+var move_left_frame_button : BaseButton
+var move_right_frame_button : BaseButton
 
 var remove_layer_button : BaseButton
 var move_up_layer_button : BaseButton
@@ -233,6 +235,8 @@ func _ready() -> void:
 	tag_dialog = find_node_by_name(animation_timeline, "FrameTagDialog")
 
 	remove_frame_button = find_node_by_name(animation_timeline, "DeleteFrame")
+	move_left_frame_button = find_node_by_name(animation_timeline, "MoveLeft")
+	move_right_frame_button = find_node_by_name(animation_timeline, "MoveRight")
 
 	remove_layer_button = find_node_by_name(animation_timeline, "RemoveLayer")
 	move_up_layer_button = find_node_by_name(animation_timeline, "MoveUpLayer")

src/Classes/Project.gd

@@ -136,6 +136,8 @@ func change_project() -> void:
 	Global.current_frame_mark_label.text = "%s/%s" % [str(current_frame + 1), frames.size()]
 
 	Global.disable_button(Global.remove_frame_button, frames.size() == 1)
+	Global.disable_button(Global.move_left_frame_button, frames.size() == 1 or current_frame == 0)
+	Global.disable_button(Global.move_right_frame_button, frames.size() == 1 or current_frame == frames.size() - 1)
 	toggle_layer_buttons_layers()
 	toggle_layer_buttons_current_layer()
 
@@ -436,6 +438,8 @@ func frame_changed(value : int) -> void:
 		layers[current_layer].frame_container.get_child(current_frame).pressed = true
 
 	Global.disable_button(Global.remove_frame_button, frames.size() == 1)
+	Global.disable_button(Global.move_left_frame_button, frames.size() == 1 or current_frame == 0)
+	Global.disable_button(Global.move_right_frame_button, frames.size() == 1 or current_frame == frames.size() - 1)
 
 	Global.canvas.update()
 	Global.transparent_checker._ready() # To update the rect size

src/UI/Timeline/AnimationTimeline.tscn

@@ -465,6 +465,7 @@ margin_right = 116.0
 margin_bottom = 22.0
 rect_min_size = Vector2( 20, 0 )
 hint_tooltip = "Move the selected frame to the left."
+focus_mode = 0
 mouse_default_cursor_shape = 2
 size_flags_horizontal = 0
 size_flags_vertical = 4
@@ -474,10 +475,10 @@ anchor_left = 0.5
 anchor_top = 0.5
 anchor_right = 0.5
 anchor_bottom = 0.5
-margin_left = -7.0
-margin_top = -7.0
-margin_right = 8.0
-margin_bottom = 8.0
+margin_left = -7.5
+margin_top = -5.5
+margin_right = 7.5
+margin_bottom = 5.5
 texture = ExtResource( 8 )
 flip_h = true
 __meta__ = {
@@ -493,6 +494,7 @@ margin_right = 140.0
 margin_bottom = 22.0
 rect_min_size = Vector2( 20, 0 )
 hint_tooltip = "Move the selected frame to the right."
+focus_mode = 0
 mouse_default_cursor_shape = 2
 size_flags_horizontal = 0
 size_flags_vertical = 4
@@ -502,10 +504,10 @@ anchor_left = 0.5
 anchor_top = 0.5
 anchor_right = 0.5
 anchor_bottom = 0.5
-margin_left = -7.0
-margin_top = -7.0
-margin_right = 7.0
-margin_bottom = 7.0
+margin_left = -7.5
+margin_top = -5.5
+margin_right = 7.5
+margin_bottom = 5.5
 texture = ExtResource( 8 )
 __meta__ = {
 "_edit_use_anchors_": false