The Icon Kit is a feature that allows players to change their appearance in Geometry Dash, Geometry Dash Lite, Geometry Dash Meltdown, Geometry Dash World and Geometry Dash SubZero. A series of icon designs can be selected for each form as well as corresponding primary and secondary colours, although these are applied to all forms and cannot be selected individually. In addition, trail and death effects can be selected, although none of these have any physical effects on gameplay. Customisation options can be unlocked by completing achievements, buying from the shops and finding rewards in various chests from gauntlets, the Treasure Room and Basement.
The Icon Kit is shown in full for all games, but for those other than the full version, their available unlockables are limited. However, data can be transferred from these games using user accounts to the full version, which is required to unlock cubes 65 to 71 from Geometry Dash Meltdown, cubes 72 and 75 from Geometry Dash World, and cubes 143 to 148 from Geometry Dash SubZero.
<gallery spacing="small"> Trail01.png|(Available in World, Lite, and Meltdown) Default Trail02.png|Complete 10 Map Packs (Map Packer) Trail03.png|(Available in World) Like or Dislike 2000 online levels (The Happy One) Trail04.png|(Available in World) Type "gandalfpotter" into the Vault (Very Clever...) Trail05.png|(Available in World) Buy in the Shop for 4000 Mana Orbs Trail06.png|(Available in World) Buy in the Shop for 4000 Mana Orbs Trail07.png|(Available in World) Buy in the Secret Shop for 4000 Mana Orbs
<gallery spacing="small"> DeathEffect01.png|(Available in World, Lite and Meltdown) Default DeathEffect02.png|(Available in World) Collect 100 Fire Shards (Fire Master) DeathEffect03.png|(Available in World) Find in a Chest in the Treasure Room DeathEffect04.png|(Available in World) Collect 100 Poison Shards (Poison Master) DeathEffect05.png|(Available in World) Collect 100 Shadow Shards (Shadow Master) DeathEffect06.png|(Available in World) Collect 100 Lava Shards (Lava Master) DeathEffect07.png|(Available in World) Collect 100 Bonus Shards (Bonus Master) DeathEffect08.png|(Available in World) Buy in the Shop for 7000 mana orbs DeathEffect09.png|(Available in World) Collect 100 Ice Shards (Ice Master) DeathEffect10.png|(Available in World) Collect 5000 Diamonds (Diamond Master) DeathEffect11.png|(Available in World) Buy in the Shop for 7000 mana orbs DeathEffect12.png|(Available in World, using 2.1 saves) Collect the Chaos Key, the Time Key, and the Chest Key DeathEffect13.png|(Available in World) Buy in the Scratch's Shop for 10000 mana orbs DeathEffect14.png|(Available in World) Find in a Gold Chest in the Treasure Room DeathEffect15.png|(Available in World) Find in a Gold Chest in the Treasure Room DeathEffect16.png|(Available in World) Buy in the Scratch's Shop for 15000 mana orbs DeathEffect17.png|Complete the Doom Gauntlet
- 1 Available in all games.
- 2 Available in Geometry Dash Lite.
- 3 Available in Geometry Dash Meltdown.
- 4 Available in Geometry Dash World
- 5 Available in Geometry Dash SubZero.
- There is a special option available in the Trails section to ‘Enable glow’, which forms an outline of the selected secondary colour to surround the edges of the selected icons. It is unlocked simultaneously when Trail 2 is unlocked, which was introduced in Update 1.7.
- Prior to Update 2.0, the glow effect was exclusively associated with Trail 2 and did not have an option to independently enable or disable it, meaning that the specific trail had to be used to enable the glow effect.
- The 1.0 version of Geometry Dash World contained 8 trails, rather than 7.
- The eighth trail had four lines, one above another.
- Also, the fire-like trail that can be purchased in Scratch's Shop had a different design.
- The occurrence of trails is dependent on the form and its interactions with level components.
- In ship form, UFO form, and wave form, the player's trail will always appear. However, in wave form the trail is hidden behind the wave line.
- In cube form, ball form, robot form, and spider form, the player's trail will only appear when the player interacts with rings, pads, and gravity portals.
- An unrelated 'trail' which rapidly ghosts primary coloured copies of the player is present in some levels, being a trigger in the level editor.
- Choosing black as the primary colour will automatically add a glow around the player's icon, regardless of whether or not you have the "glow" option. Several other changes occur namely applying the secondary colour to level components and the progress bar which would usually use the primary color.
- Despite only being able to be unlocked in the Steam version of Geometry Dash, the "SteamStep!" and the "Steamrolling" icons appear traveling across the menu in the mobile versions of the game.
- Some ships that are relatively hard to unlock in the full version are easy to unlock in the lite version of the game. For example, the ship unlocked for collecting 600 stars can now be acquired with 15 secret coins.
- Originally, the ship would only take the primary colour of the player, with shading instead of a secondary colour. The secondary colour was made visible in Update 1.4.
- There are three different sizes of UFO domes.
- UFOs 1-8 have the "standard" size dome.
- UFO 9 and later releases have smaller domes compared to those released prior.
- UFO 19 and later releases have larger domes compared to those released prior.
- Prior to Update 2.0, the wave form did not have an in-game name as the name of forms is only shown when unlocking or selecting locked icons; as the only wave in 1.9 was the default icon, no in-game name was given— players colloquially referred to it as the wave. Update 2.0 officially established its name as "dart," but was changed to "'wave" in Update 2.01.
- Prior to Update 2.01, two icons, which are "Nice shot!" and "Catch 'em all!", were glitched and almost impossible to get.
- It was possible to get the "Catch 'em all!" icon by tapping a glitched normal-sized mini icon on the main menu. However, there is a rare chance of this happening.
- Prior to Update 2.1, the requirement to collect the "Supporter" icon included going to settings and tapping the "Rate" button. Changed in Update 2.1, the player is now required to tap the lock on the cube in the Icon Kit. Scratch will then give the player the icon as a free sample and tell the player to find him when they can.
- Prior to Update 2.1, the mini cube and ball forms had standalone icons which would replace the player's chosen icons.
- An option was later added which allowed the player to activate the use of the default mini icons by going into settings.
- A contest has been held by Viprin, Etzer, and RobTop in which people create their own icons using Adobe Photoshop (preferred) and the best are implemented into 2.2, as well as Bonus Winners and RobTop's Pick (originally top 10, but the number increases as more entries come in).
- Release of the winning icons are as follows: 1st place icons, RobTop's Pick and Bonus Winners will be released in Update 2.11. 2nd, 3rd, judges will be released in 2.2.
- The GJ_Gamesheet02-uhd file is now 3.43 MB (without edits) in 2.11.
- Every icon and portal is included in the GJ_Gamesheet02 files, including outlines.
- Each crash animation has its own file with each frame next to each other, much like a sprite-sheet.
- Using this, you can create your own death effects if you paint over the original animation.
- The "Nice Shot" icon, has a shading in the trailer of Geometrical Dominator.
- Due to a glitch which prevents the second secret coin of Power Trip from being recorded as collected, the "Ultimate Power Trip" icon is unobtainable in the iOS version of Geometry Dash Subzero.
- The icon unlocked for typing 'spooky' in the vault resembles a Shy Guy, an enemy in the Super Mario and Yoshi's Island franchises.
- The icon for the achievement "Nice Shot!" appears to be based on the Rotating Block from Super Mario World.
- The icon unlocked for collecting all three coins on Theory of Everything 2 resembles a Boo, a ghost-like character from the Super Mario franchise.
- The icon unlocked for collecting 10 user coins resembles the sprite of a mushroom from Super Mario Bros. 3.
- However, the icon has a squared top, unlike when it was first seen in the second WIP image for Update 2.0. The rounded top originally seen in the WIP image better resembled that of the mushroom sprite.
- The icon unlocked for collecting 15 Lava Shards resembles a Thwomp from the Super Mario franchise.
- The ship unlocked for 35 bonus shards resembles a Chain Chomp from the Super Mario franchise.
- The UFO unlocked for completing 30 map packs is based on Bowser's Clown Car in Super Mario World.
- The icon unlocked for collecting 2000 diamonds resembles Kirby, a popular video game character.
- The ship unlocked for collecting 800 user coins bears a resemblance to the Jet Star from Kirby's Air Ride.
- The ship unlocked for collecting 75 secret coins resembles Porygon from the Pokémon franchise.
- One of the spiders available from the community shop resembles Stakataka from the Pokémon franchise.
- The waves unlocked for acquiring 2,500 stars and typing "Ahead" into the vault resemble a Metroid, main enemies of the Metroid franchise.
- The icon unlocked for beating Jumper resembles Ogmo, the main character of the game Jumper by Matt Thorson.
- The icon unlocked by completing Hexagon Force in Normal Mode resembles a Creeper, a popularized aggressive and explosive mob from the game Minecraft.
- The icon unlocked for obtaining 60 user coins resembles BamBam, a boom from the game Boomlings.
- Boomlings and Geometry Dash are both games made by RobTop.
- The robot unlocked for collecting 100 user coins appears to be a helmet that resembles Master Chief from Halo.
- The icon unlocked upon gaining 3000 stars appears to be a direct reference to Super Meat Boy.
- One of the icons available in the secret shop resembles Kratos from God of War.
- One of the robots available in the community shop resembles Zero from the Mega Man series.
- The icon unlocked for collecting all three coins on Deadlocked loosely appears to be a spin-off on Wolverine.
- The icon unlocked for collecting 110 secret coins resembles Deadpool.
- The icon unlocked for collecting 150 user coins resembles Marvel's Iron Man.
- The robot unlocked for completing Deadlocked in normal mode also resembles Iron Man.
- The cube for getting all of the keys (Chaos, Chest, and Time) resembles the logo for Marvel's Punisher.
- The icon unlocked for rating the stars on 2000 online levels appears to be a spin-off on Batman, hence the name "Justice".
- The ship unlocked for collecting 30 user coins resembles Elliott from Disney's movie Pete's Dragon.
- The icon unlocked for collecting 110 user coins appears to be the head of Robocop, the main character of the movie Robocop.
- The ship unlocked for getting 3,500 stars resembles the Mon Calamari, a ship from the Star Wars franchise.
- The UFO unlocked for getting a star feature level resembles Stitch from the movie Lilo and Stitch.
- One of the robots available in the community shop resembles Stormfly from DreamWorks' How to Train Your Dragon.
- The icon unlocked for typing 'Lenny' in the vault references a Lenny face, a popular meme created using Unicode characters.
- The wave unlocked for typing the numbers from the TV show Lost in order separately into the vault (8-16-30-32-46-84), resembles the Illuminati or the All-Seeing Eye.
- One of the icons that can be purchased in the shop resembles the (._.) emoticon.
- One of the UFOs that can be purchased in the shop resembles the "Look of Disapproval" emoticon.
- One of the spiders that can be found in the Treasure Room, as well as cubes 104 and 105, faintly resemble the Shoop Da Whoop meme.
- The ball's face unlocked by collecting 15 Fire Shards resembles the face on Dex Arson's logo.
- This could be a direct reference to him, since he is a very well-known composer in the community and various songs of his have been used in official levels from Geometry Dash World.
- The ball unlocked for collecting 140 user coins resembles the Yin-Yang symbol.
- The ship unlocked for collecting 180 user coins appears to resemble Firebird, an MDK character.
- The robot unlocked for collecting 200 user coins appears to be a medieval helmet.
- The ship unlocked for completing 1,000 user created levels resembles a sea horse, a sea creature from the coral reef.
- The icon unlocked for typing "seven" into the Vault of Secrets is a direct reference to Finn the Human from Adventure Time.
- The icon unlocked for typing "brainpower" into the Vault of Secrets loosely appears to be a spin-off on Philly Phil from Class of 3000.
- One of the icons that can be found in a golden chest in the treasure room resembles the skull from the Doom Gauntlet picture.
- Four of the ships and one of the balls available in the Community Shop resemble dragons.
- A ship and a spider available in the Community Shop and another ship unlocked for completing 5 Map packs resemble sharks.
- Some icons are inspired directly from the Oxygene 1 font which is used often throughout the game. These icons include "Stereo Madness!", "Dry Out!", "Base After Base!", "Jumper!", "Supporter", and the icon from the logos of Geometry Dash and Geometry Dash World.
- The Steam exclusive icon for beating 3 main levels is an obvious reference to Valve's Portal series Companion Cube. Valve also owns Steam, one of the platforms that Geometry Dash is available on.
- The other Steam icon for finishing Clubstep in normal mode ("SteamStep!") has special glasses that directly mimic the Steam logo.