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Simple extension to draw a 3 x 3 grid on an image to help visualise the Rule of Thirds.
Latest Version
Version
1.7
Update
June 2, 2024
Size
92.63KiB
Developer
Category
Users
6,000+ 
Rating
4.4 ★
Manifest Version
3
Web Store Status
Extension ID
Languages Support
Permissions
Scripting
ActiveTab
Storage
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ActiveTab
Storage
Rule of Thirds Extension
The is a simple extension to apply a 3 x 3 grid over any images found on a web page which are larger than 100px x 50px. The purpose of the grid is to help photographers visualise the Rule of Thirds.
By displaying the grid over the image it is very simple to identify if a photograph's main focal points comply with the Rule of Thirds or not.
History
--------------------------------------------------------------------------------------------------------------------------------------------
v1.7 - 2 June 2024
* Switch from host_permissions to activeTab (extension does nothing until clicked)
* Position grid correctly for local images (ie file:// protocol)
* Add Options page to control grid size, colours & whether lines and/or circles are rendered
* Support arbitrary sized grid
v1.6 - 21 May 2024
* Migrate to Manifest v3
* Replace JQuery dependency with native functions
v1.5 - 29 August 2014
* Ignore images with \"display: none\" styles
* Fix circles on intersection points so they are drawn fully
Read more
By displaying the grid over the image it is very simple to identify if a photograph's main focal points comply with the Rule of Thirds or not.
History
--------------------------------------------------------------------------------------------------------------------------------------------
v1.7 - 2 June 2024
* Switch from host_permissions to activeTab (extension does nothing until clicked)
* Position grid correctly for local images (ie file:// protocol)
* Add Options page to control grid size, colours & whether lines and/or circles are rendered
* Support arbitrary sized grid
v1.6 - 21 May 2024
* Migrate to Manifest v3
* Replace JQuery dependency with native functions
v1.5 - 29 August 2014
* Ignore images with \"display: none\" styles
* Fix circles on intersection points so they are drawn fully
Source Manifest.json
{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "Rule of Thirds", "version": "1.7", "description": "Simple extension to draw a 3 x 3 grid on an image to help visualise the Rule of Thirds.", "icons": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png" }, "background": { "service_worker": "service_worker.js" }, "permissions": [ "scripting", "activeTab", "storage" ], "options_page": "options/options.html", "action": { "default_icon": { "19": "icon19.png", "38": "icon38.png" }, "default_title": "Add Rule of Thirds grid to images larger than 100 x 50 in either orientation", "name": "Rule of Thirds" }}
Read more
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User reviews
Iaroslav Smirnov (ID: 0000003562349392) Voted 3 ★ - Updated 08/19/2023
Max Volodin (ID: 0000008664d5a24d) Voted 5 ★ - Updated 02/12/2021
MANDEM Steinman-Arendsee (ID: 000000e53a642b7b) Voted 5 ★ - Updated 09/23/2019
Ankit Sharma (ID: 00000043e65b365e) Voted 5 ★ - Updated 08/31/2019
Usef (ID: 00000014db5ed34b) Voted 1 ★ - Updated 03/28/2018
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