Colors get added automatically to theme file

Hi v-chuncz-msft

Yes. I m using the theme file as specified in the documentation.

Steps to reporduce the bug:

1. Import a theme

2. Create some visuals

3. Customize colors in some of the visuals.

Now check the zip file and you should see that the json has a lot many colors that were not available in first place.

Number of colors listed can vary and changes everytime some changes are incorporated.

AAA.json (Theme File that was imported)

{"name":"AAA","dataColors":["#00ADEF","#FFC90C","#002664","#7FC458","#E46C02","#4BC9F5","#FE9666","#A66999","#3599B8","#DFBFBF"],"background":"#FFFFFF","foreground":"#000000","tableAccent":"#c2c2c2"}

AAA46588067386723564.json (File you can find inside PBIX file)

{"name":"AAA","dataColors":["#00ADEF","#FFC90C","#002664","#7FC458","#E46C02","#4BC9F5","#FE9666","#A66999","#3599B8","#DFBFBF","#4AC5BB","#5F6B6D","#FB8281","#F4D25A","#7F898A","#A4DDEE","#FDAB89","#B687AC","#28738A","#A78F8F","#168980","#293537","#BB4A4A","#B59525","#475052","#6A9FB0","#BD7150","#7B4F71","#1B4D5C","#706060","#0F5C55","#1C2325","#7D3231","#796419","#303637","#476A75","#7E4B36","#52354C","#0D262E","#544848","#016AB8","#373D49","#FDB15D","#AAF20F","#5F646D","#8AA3EB","#FEE266","#A6687A","#3557B8","#DFCFBF","#4A91C5","#5F646D","#FBBF81","#C9F459","#7F838A","#A4B8EE","#FDE489","#B68794","#28428A","#A79B8F","#165889","#292E37","#BB824A","#8DB525","#474A52","#6A7CB0","#BDA750","#7B4F5A","#1B2C5C","#706860","#0F3C5C","#1C1E25","#7D5731","#5D7918","#303237","#475375","#7E6F36","#52343D","#0D152E","#544E48","#010EB8","#393749","#F9FD5D","#38F20F","#615F6D","#A08AEB","#CEFE66","#A67668","#5435B8","#DFDFBF","#4A53C5","#615F6D","#FAFB81","#7CF459","#807F8A","#B5A4EE","#DBFD89","#B69087","#3F288A","#A7A78F","#161F89","#2A2937","#BBBB4A","#45B525","#494752","#7A6AB0","#9CBD50","#7B594F","#291B5C","#707060","#0F155C","#1E1C25","#7C7D31","#2D7918","#303037","#514775","#697E36","#523B34","#140D2E","#545448","#4E01B8","#423749","#A9FD5D","#0FF256","#675F6D","#D18AEB","#82FE66","#A69468","#9535B8","#CFDFBF","#7D4AC5","#675F6D","#BCFB81","#59F484","#857F8A","#DAA4EE","#A1FD89","#B6A887","#6F288A","#9BA78F","#461689","#322937","#82BB4A","#25B54C","#4E4752","#9E6AB0","#65BD50","#7B6E4F","#4A1B5C","#687060","#2E0F5C","#221C25","#567D31","#187934","#343037","#684775","#457E36","#524934","#250D2E","#4E5448","#AA01B8","#493746","#5DFD62","#0FF2C7","#6D5F6B","#EB8AD3","#66FE96","#99A668","#B83598","#BFDFBF","#BA4AC5","#6D5F6B","#81FB82","#59F4D1","#8A7F89","#EEA4DD","#89FDAA","#ACB687","#8A2873","#8FA78F","#801689","#372934","#4ABB4A","#25B594","#524750","#B06A9F","#50BD70","#717B4F","#5C1B4D","#607060","#540F5C","#251C22","#317D32","#187964","#373036","#75476A","#367E4A","#4C5234","#2E0D26","#485448","#B8016A","#49373D","#5DFDB1","#0FAAF2","#6D5F64","#EB8AA3","#66FEE2","#7AA668","#B83557","#BFDFCF","#C54A91","#6D5F64","#81FBBF","#59C9F4","#8A7F83","#EEA4B8","#89FDE5","#94B687","#8A2842","#8FA79B","#891658","#37292E","#4ABB82","#258DB5","#52474A","#B06A7C","#50BDA7","#5B7B4F","#5C1B2C","#607068","#5C0F3C","#251C1E","#317D58","#185D79","#373032","#754752","#367E6F","#3D5234","#2E0D15","#48544E","#B8010E","#493937","#5DF9FD","#0F38F2","#6D615F","#EBA08A","#66CEFE","#68A676","#B85435","#BFDFDF","#C54A53","#6D615F","#81FAFB","#597CF4","#8A807F","#EEB5A4","#89DBFD","#87B691","#8A3F28","#8FA7A7","#89161E","#372A29","#4ABBBB","#2545B5","#524947","#B07A6A","#509CBD","#4F7B58","#5C291B","#607070","#5C0F15","#251E1C","#317C7D","#182D79","#373030","#755147","#36687E","#34523B","#2E140D","#485454","#B84E01","#494337","#5DA9FD","#560FF2","#6D685F","#EBD18A","#6681FE","#68A694","#B89535","#BFCFDF","#C57D4A","#6D685F","#81BCFB","#8459F4","#8A857F","#EEDAA4","#89A1FD","#87B6A8","#8A7028","#8F9BA7","#894616","#373229","#4A82BB","#4D25B5","#524E47","#B09E6A","#5065BD","#4F7B6F","#5C4A1B","#606870","#5C2E0F","#25221C","#31567D","#341879","#373430","#756947","#36447E","#345249","#2E250D","#484E54","#B8A901","#464937","#615DFD","#C70FF2","#6B6D5F","#D4EB8A","#9666FE","#6898A6","#99B835","#BFBFDF","#C5BA4A","#6B6D5F","#8181FB","#D159F4","#898A7F","#DDEEA4","#AA89FD","#87ACB6","#738A28","#8F8FA7","#897F16","#353729","#4A4ABB","#9425B5","#505247","#9FB06A","#7050BD","#4F717B","#4D5C1B","#606070","#5C540F","#23251C","#31317D","#641879","#363730","#6A7547","#4B367E","#344C52","#262E0D","#484854","#6AB801","#3D4937","#B15DFD","#F20FAA","#646D5F","#A3EB8A","#E266FE","#687AA6","#57B835","#CFBFDF","#91C54A","#646D5F","#BF81FB","#F459C9","#838A7F","#B7EEA4","#E589FD","#8794B6","#428A28","#9B8FA7","#588916","#2E3729","#824ABB","#B5258D","#4A5247","#7CB06A","#A750BD","#4F5B7B","#2C5C1B","#686070","#3C5C0F","#1E251C","#57317D","#79185D","#323730","#537547","#6F367E","#343D52","#152E0D","#4E4854","#0FB801","#37493A","#FD5DF9","#F20F39","#5F6D61","#8AEBA1","#FE66CE","#7568A6","#35B854","#DFBFDF","#54C54A","#5F6D61","#FB81FA","#F4597C","#7F8A80","#A4EEB5","#FD89DB","#9187B6","#288A3F","#A78FA7","#1F8916","#29372B","#BB4ABB","#B52544","#475249","#6AB07B","#BD509B","#594F7B","#1B5C2A","#706070","#155C0F","#1C251E","#7D317B","#79182D","#303731","#477552","#7E3668","#3B3452","#0D2E14","#544854","#01B84E","#374942","#FD5DA9","#F2560F","#5F6D67","#8AEBD1","#FE6682","#9468A6","#35B895","#DFBFCF","#4AC57D","#5F6D67","#FB81BD","#F48459","#7F8A85","#A4EEDA","#FD89A1","#A887B6","#288A6F","#A78F9B","#168946","#293732","#BB4A82","#B54C25","#47524E","#6AB09D","#BD5065","#6E4F7B","#1B5C4A","#706068","#0F5C2E","#1C2522","#7D3156","#793418","#303734","#477568","#7E3644","#493452","#0D2E25","#54484E"],"background":"#FFFFFF","foreground":"#000000","tableAccent":"#c2c2c2"}

Regards,

Mannu