描述Keystone Flag.svg	English: A proposed redesign for the flag of Pennsylvania, also known as the "Keystone Flag." The design maintains all of the symbolism of the flag authorized by the state in 1798 and legislated in 1907, but rather than utilizing a complicated Coat of Arms, is designed simply to work best as a flag. A detailed construction sheet is available at File:Keystone Flag Construction Sheet.svg.
日期	2017年3月10日 (modified to current proportions 25 June 2019, color specs defined 26 October 2022)[1])
来源	自己的作品
作者	Tara Stark
其他版本	Derivative works of this file:  Keystone Flag (Progress Pride Variant).svg:

(Care should be taken to display the flag as detailed below in "Display" to help communicate the symbolism of the flag.)

The symbolic meaning of the elements of the flag:

• A keystone (Pennsylvania is known as the "Keystone State") tying opposite sides of the flag together, as Pennsylvania was the center tying together the 13 original colonies of the United States and continues to be at the center of national thought
• Green, gold, and blue for Virtue, Liberty, and Independence (the state motto)

• When displayed vertically by the hoist (blue at the top), recalls the shield in the state Coat of Arms, and all the symbolism therein
  • Green for fertile fields and Pennsylvania’s wealth of human thought and action
  • Gold for Pennsylvania’s rich natural resources
  • Blue for state commerce being carried worldwide
• The shade and position of blue matches that of the Union on the flag of the United States, symbolizing Pennsylvania's role in the nation's past and ongoing history
• Roughly resembles the geography of western forests/mountains, farmland in the midstate, and the Delaware River making up the eastern border

A visual demonstration of the inspiration for this symbolism is available on KeystoneFlag.org/#symbolism.

• The Keystone Flag is composed of a bicolor divided midway along the breadth, green at the fly, and blue at the hoist; charged with a gold Keystone spanning the entire breadth of the flag.
• The Keystone shall be composed of two vertically stacked isosceles trapezoids, the smaller above with a height of 1/4 the flag’s breadth, with an upper base of 1/3 and lower base of 1/4 the flag’s length, the larger below with a height of 3/4 the flag’s breadth and upper base of 1/2 and lower base of 1/4 the flag’s length.
• The proportions of the flag must ensure the Keystone is still identifiably a keystone and constitutes approximately one third of the flag, thus, the total length of the flag may be no less than one and one half the breadth, and no more than twice the breadth.
• In the interest of best maintaining symbolism, those who manufacture, create, or reproduce the flag in a manner where the obverse and reverse (front and back) sides of a flag can be discerned (via stitching techniques, orientation of grommets, the bleed of dye, or otherwise) should make every attempt to place the hoist at the right-hand side of the obverse (front) of the flag.
• Fringe may be added to the sides of the flag for ceremonial use.

The three colors of the Keystone Flag are blue, gold, and green. The shade of blue matches the blue on the Flag of the United States, the shade of gold is "bright and vibrant," the shade of green should "both complement the blue and contrast the gold." The color specifications as defined by Keystone Flag designer Tara Stark are:

Color scheme	Green		Gold		Old Glory Blue[2]
Pantone	349 C		116 C		282 C
RGB	4–106–56		255–205–0		10–49–97
Hex	#007A33		#FFCD00		#0A3161
CMYK	96%–0%–47%–58%		0%–20%–100%–0%		100%–68%–0%–54%

In most cases, on-screen or digital reproductions of the flag should use the RGB colors as in the table above. When displaying in physical fabric formats, it is much preferred to use the Pantone specifications. When printing on paper, the CMYK colours are superior.

To best preserve the symbolism of the flag when displayed, it is recommended to observe the following:

• When affixed to a pole, the top of the Keystone should be oriented closest to the top of the pole.

• When displayed or depicted horizontally (whether draped, hanging, flying in a breeze, or otherwise), green should appear to the observer’s left and blue should appear to the observer's right, wherever feasible.
• Displaying the flag vertically without a flagpole (draped, hanging, or otherwise) is discouraged, but when deemed appropriate or necessary:
  • the hoist should appear above the flag, with the top of the Keystone oriented away from the center of the display, as would appear a stone in an arch;
  • if there is no clear center of display, the top of the Keystone should face away from the nearest portal (doorway, window, passageway, etc);
  • if no center or portal can be determined or the flag is the center of display, the front of the flag should be visible to the most observers;
  • if it will be observed from multiple sides, the top of the keystone should orient to the north or the east (as would the Union of the Flag of the United States).
• If displayed in conjunction with the flag of the United States, where following the above would cause a violation United States Flag Code, accommodations are permissible, but should be made as minimally as able.

我，本作品著作权人，特此采用以下许可协议发表本作品：

	本作品采用知识共享CC0 1.0 通用公有领域贡献许可协议授权。
	采用本宣告发表本作品的人，已在法律允许的范围内，通过在全世界放弃其对本作品拥有的著作权法规定的所有权利（包括所有相关权利），将本作品贡献至公有领域。您可以复制、修改、传播和表演本作品，将其用于商业目的，无需要求授权。 http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse

这张旗帜图像不符合版权的资格，因此属于公有领域，因为它完全由共同财产的信息组成，不包含原始作者。有关更多信息，请见Commons:Threshold of originality § Logos and flag。

这面旗帜是虚构的，或被提议但并未被采用。它在命名上可能与地理上的或其他的实体类似，或具有一些与该实体的官方标志或旗帜相似的视觉元素，但它不是官方的，没有获得任何官方的认可。

1. ↑ https://www.facebook.com/groups/452687255183305/posts/722975811487780/
2. ↑ Pantone, RGB, CMYK values appear inconsistent on screen, but are consistent with US Dept of State standards. United States Department of State Identity and Marking Standards. Bureau of Educational and Cultural Affairs (June 2012). Archived from the original on December 12, 2019. Retrieved on 2021-06-18.